RACOON.CONF(5)            NetBSD File Formats Manual            RACOON.CONF(5)

NAME
     racoon.conf -- configuration file for racoon

DESCRIPTION
     racoon.conf is the configuration file for the racoon(8) ISAKMP daemon.
     racoon(8) negotiates security associations for itself (ISAKMP SA, or
     phase 1 SA) and for kernel IPsec (IPsec SA, or phase 2 SA).  The file
     consists of a sequence of directives and statements.  Each directive is
     composed by a tag and statements, enclosed by `{' and `}'.  Lines begin-
     ning with `#' are comments.

   Meta Syntax
     Keywords and special characters that the parser expects exactly are dis-
     played using this font.  Parameters are specified with this font.  Square
     brackets (`[' and `]') are used to show optional keywords and parameters.
     Note that you have to pay attention when this manual is describing port
     numbers.  The port number is always enclosed by `[' and `]'.  In this
     case, the port number is not an optional keyword.  If it is possible to
     omit the port number, the expression becomes [[port]].  The vertical bar
     (`|') is used to indicate a choice between optional parameters.  Paren-
     theses (`(' and `)') are used to group keywords and parameters when nec-
     essary.  Major parameters are listed below.

     number    means a hexadecimal or a decimal number.  The former must be
               prefixed with `0x'.
     string
     path
     file      means any string enclosed in `"' (double quotes).
     address   means IPv6 and/or IPv4 address.
     port      means a TCP/UDP port number.  The port number is always
               enclosed by `[' and `]'.
     timeunit  is one of following: sec, secs, second, seconds, min, mins,
               minute, minutes, hour, hours.

   Privilege separation
     privsep { statements }
             Specifies privilege separation parameters.  When enabled, these
             enable racoon(8) to operate with an unprivileged instance doing
             most of the work, while a privileged instance takes care of per-
             forming the following operations as root: reading PSK and private
             keys, launching hook scripts, and validating passwords against
             system databases or against PAM.  Please note that using privi-
             lege separation makes changes to the listen and paths sections
             ignored upon configuration reloads.  A racoon(8) restart is
             required if you want such changes to be taken into account.

             user user;
                     The user to which the unprivileged instance of racoon(8),
                     should switch.  This can be a quoted user name or a
                     numeric UID.
             group group;
                     The group the unprivileged instance of racoon(8), should
                     switch.  This can be a quoted group name or a numeric
                     GID.
             chroot path;
                     A directory to which the unprivileged instance of
                     racoon(8) should chroot(2).  This directory should hold a
                     tree where the following files must be reachable:
                     /dev/random
                     /dev/urandom
                     The certificates
                     The file containing the Xauth banner

                     The PSK file, the private keys, and the hook scripts are
                     accessed through the privileged instance of racoon(8) and
                     do not need to be reachable in the chroot(2)'ed tree.

   Path Specification
     This section specifies various paths used by racoon.  When running in
     privilege separation mode, certificate and script paths are mandatory.  A
     racoon(8) restart is required if you want path changes to be taken into
     account.
     path include path;
             Specifies a path to include a file.  See File Inclusion.
     path pre_shared_key file;
             Specifies a file containing pre-shared key(s) for various ID(s).
             See Pre-shared key File.
     path certificate path;
             racoon(8) will search this directory if a certificate or certifi-
             cate request is received.  If you run with privilege separation,
             racoon(8) will refuse to use a certificate stored outside of this
             directory.
     path backupsa file;
             Specifies a file to which SA information negotiated by racoon
             should be stored.  racoon(8) will install SA(s) from the file
             when started with the -B flag.  The file is growing because
             racoon(8) simply adds SAs to it.  You should maintain the file
             manually.
     path script path;
             racoon(8) will search this directory for scripts hooks.  If you
             run with privilege separation, racoon(8) will refuse to execute a
             script stored outside of this directory.
     path pidfile file;
             Specifies file where to store PID of process.  If path starts
             with / it is treated as an absolute path.  Otherwise, it is
             treated as a relative path to the VARRUN directory specified at
             compilation time.  Default is racoon.pid.

   File Inclusion
     include file
             Specifies other configuration files to be included.

   Timer Specification
     timer { statements }
             This section specifies various timer values used by racoon.

             counter number;
                     The maximum number of retries to send.  The default is 5.
             interval number timeunit;
                     The interval to resend, in seconds.  The default time is
                     10 seconds.
             persend number;
                     The number of packets per send.  The default is 1.
             phase1 number timeunit;
                     The maximum time it should take to complete phase 1.  The
                     default time is 15 seconds.
             phase2 number timeunit;
                     The maximum time it should take to complete phase 2.  The
                     default time is 10 seconds.
             natt_keepalive number timeunit;
                     The interval between sending NAT-Traversal keep-alive
                     packets.  The default time is 20 seconds.  Set to 0s to
                     disable keep-alive packets.

   Listening Port Specification
     listen { statements }
             If no listen directive is specified, racoon(8) will listen on all
             available interface addresses.  The following is the list of
             valid statements:

             isakmp address [[port]];
                     If this is specified, racoon(8) will only listen on the
                     defined address.  The default port is 500, which is spec-
                     ified by IANA.  You can provide more than one address
                     definition.
             isakmp_natt address [port];
                     Same as isakmp but also sets the socket options to accept
                     UDP-encapsulated ESP traffic for NAT-Traversal.  If you
                     plan to use NAT-T, you should provide at least one
                     address with port 4500, which is specified by IANA.
                     There is no default.
             strict_address;
                     Requires that all addresses for ISAKMP be bound.  This
                     statement will be ignored if you do not specify address
                     definitions.
             When running in privilege separation mode, you need to restart
             racoon(8) to have changes to the listen section taken into
             account.

             The listen section can also be used to specify the admin socket
             mode and ownership if racoon was built with support for admin
             port.
             adminsock path [owner group mode];
                     The path, owner, and group values specify the socket
                     path, owner, and group.  They must be quoted.  The
                     defaults are /var/racoon/racoon.sock, UID 0, and GID 0.
                     mode is the access mode in octal.  The default is 0600.
             adminsock disabled;
                     This directive tells racoon to not listen on the admin
                     socket.

   Miscellaneous Global Parameters
     gss_id_enc enctype;
             Older versions of racoon(8) used ISO-Latin-1 as the encoding of
             the GSS-API identifier attribute.  For interoperability with
             Microsoft Windows' GSS-API authentication scheme, the default
             encoding has been changed to UTF-16LE.  The gss_id_enc parameter
             allows racoon(8) to be configured to use the old encoding for
             compatibility with existing racoon(8) installations.  The follow-
             ing are valid values for enctype:

             utf-16le
                     Use UTF-16LE to encode the GSS-API identifier attribute.
                     This is the default encoding.  This encoding is compati-
                     ble with Microsoft Windows.
             latin1  Use ISO-Latin-1 to encode the GSS-API identifier
                     attribute.  This is the encoding used by older versions
                     of racoon(8).

     pfkey_buffer kBytes
             Specifies the socket send/receive buffer size in kilobytes.
             Numerous kernel PF_KEY implementations have problems with dumping
             SAD/SDP with large amount of entries (this happens when 100s to
             1000s of tunnels are configured).

             The default value of 0 leaves everything at the OS-specific
             default value.  If the default buffer size is greater than what
             is specified here racoon will not decrease it.

             This problem is known to be fixed in Linux 2.6.25 and later.

   Remote Nodes Specifications
     remote name [inherit parent_name] { statements }
     remote name inherit parent_name;
             Specifies the IKE phase 1 parameters for each remote node.

             If connection is initiated using racoonctl, a unique match using
             the remote IP must be found or the remote block name has to be
             given.  For received acquires (kernel notices traffic requiring a
             new SA) the remote IP and remoteid from matching sainfo block are
             used to decide the remoteblock.  If no uniquely matching remote-
             block is found using these criteria, no connection attempt is
             done.

             When acting as responder, racoon picks the first proposal that
             has one or more acceptable remote configurations.  When determin-
             ing if a remote specification is matching the following informa-
             tion is checked:
                    The remote IP is checked against remote_address.
                    ISAKMP exchange type is checked against exchange_mode.
                    ISAKMP SA attributes must match a proposal block.
                    The remote identity is matched against peers_identifier
                     if verify_identifier is on.
                    If a certificate request was received, it must match the
                     issuer of certificate_type x509 certificate.  If certifi-
                     cate request without issuer name was sent, the
                     match_empty_cr parameter specifies whether or not remote
                     block matches.

             Similarly, NAT-T is enabled if any of the initial remote configu-
             ration candidates allow NAT-T.

             Sections with inherit parent statements (where parent is either
             address or a keyword anonymous) that have all values predefined
             to those of a given parent.  In these sections it is enough to
             redefine only the changed parameters.

             The following are valid statements.

             remote_address address;
                     Defines the IP address of the peer.
             exchange_mode (main | aggressive | base);
                     Defines the exchange mode for phase 1 when racoon is the
                     initiator.  It also means the acceptable exchange mode
                     when racoon is the responder.  More than one mode can be
                     specified by separating them with a comma.  All of the
                     modes are acceptable.  The first exchange mode is what
                     racoon uses when it is the initiator.
             doi ipsec_doi;
                     Means to use IPsec DOI as specified in RFC 2407.  You can
                     omit this statement.
             situation identity_only;
                     Means to use SIT_IDENTITY_ONLY as specified in RFC 2407.
                     You can omit this statement.
             my_identifier [qualifier] idtype ...;
                     Specifies the identifier sent to the remote host and the
                     type to use in the phase 1 negotiation.  address, fqdn,
                     user_fqdn, keyid, and asn1dn can be used as an idtype.
                     The qualifier is currently only used for keyid, and can
                     be either file or tag.  The possible values are :
                     my_identifier address [address];
                             The type is the IP address.  This is the default
                             type if you do not specify an identifier to use.
                     my_identifier user_fqdn string;
                             The type is a USER_FQDN (user fully-qualified
                             domain name).
                     my_identifier fqdn string;
                             The type is a FQDN (fully-qualified domain name).
                     my_identifier keyid [file] file;
                             The type is a KEY_ID, read from the file.
                     my_identifier keyid tag string;
                             The type is a KEY_ID, specified in the quoted
                             string.
                     my_identifier asn1dn [string];
                             The type is an ASN.1 distinguished name.  If
                             string is omitted, racoon(8) will get the DN from
                             the Subject field in the certificate.
             xauth_login [string];
                     Specifies the login to use in client-side Hybrid authen-
                     tication.  It is available only if racoon(8) has been
                     built with this option.  The associated password is
                     looked up in the pre-shared key files, using the login
                     string as the key id.
             peers_identifier idtype ...;
                     Specifies the peer's identifier to be received.  If it is
                     not defined then racoon(8) will not verify the peer's
                     identifier in ID payload transmitted from the peer.  If
                     it is defined, the behavior of the verification depends
                     on the flag of verify_identifier.  The usage of idtype is
                     the same as my_identifier except that the individual com-
                     ponent values of an asn1dn identifier may specified as *
                     to match any value (e.g. "C=XX, O=MyOrg, OU=*, CN=Mine").
                     The format of the specification should correspond to RFC
                     2253; in particular, commas and certain other characters
                     - ,=+<>#; - may be included in a name by preceeding them
                     with a backslash "\", and arbitrary characters may be
                     inserted in a name with the "\nn" escape, where nn is the
                     hex representation of the ascii value of the desired
                     character.  Alternative acceptable peer identifiers may
                     be specified by repeating the peers_identifier statement.
             verify_identifier (on | off);
                     If you want to verify the peer's identifier, set this to
                     on.  In this case, if the value defined by
                     peers_identifier is not the same as the peer's identifier
                     in the ID payload, the negotiation will fail.  The
                     default is off.
             certificate_type certspec;
                     Specifies a certificate specification.  certspec is one
                     of followings:
                     x509 certfile privkeyfile;
                             certfile means a file name of a certificate.
                             privkeyfile means a file name of a secret key.
                     plain_rsa privkeyfile;
                             privkeyfile means a file name of a private key
                             generated by plainrsa-gen(8).  Required for RSA
                             authentication.
             ca_type cacertspec;
                     Specifies a root certificate authority specification.
                     cacertspec is one of followings:
                     x509 cacertfile;
                             cacertfile means a file name of the root certifi-
                             cate authority.  Default is /etc/openssl/cert.pem
             mode_cfg (on | off);
                     Gather network information through ISAKMP mode configura-
                     tion.  Default is off.
             weak_phase1_check (on | off);
                     Tells racoon to act on unencrypted deletion messages dur-
                     ing phase 1.  This is a small security risk, so the
                     default is off, meaning that racoon will keep on trying
                     to establish a connection even if the user credentials
                     are wrong, for instance.
             peers_certfile (dnssec | certfile | plain_rsa pubkeyfile);
                     If dnssec is defined, racoon(8) will ignore the CERT pay-
                     load from the peer, and try to get the peer's certificate
                     from DNS instead.  If certfile is defined, racoon(8) will
                     ignore the CERT payload from the peer, and will use this
                     certificate as the peer's certificate.  If plain_rsa is
                     defined, racoon(8) will expect pubkeyfile to be the
                     peer's public key that was generated by plainrsa-gen(8).
             script script phase1_up
             script script phase1_down
             script script phase1_dead
                     Shell scripts that get executed when a phase 1 SA goes up
                     or down, or when it is detected as dead by DPD.  All
                     scripts get either phase1_up , phase1_down or phase1_dead
                     as first argument, and the following variables are set in
                     their environment:
                     LOCAL_ADDR
                             The local address of the phase 1 SA.
                     LOCAL_PORT
                             The local port used for IKE for the phase 1 SA.
                     REMOTE_ADDR
                             The remote address of the phase 1 SA.
                     REMOTE_PORT
                             The remote port used for IKE for the phase 1 SA.
                     REMOTE_ID
                             The remote identity received in IKE for the phase
                             1 SA.
                     The following variables are only set if mode_cfg was
                     enabled:
                     INTERNAL_ADDR4
                             An IPv4 internal address obtained by ISAKMP mode
                             config.
                     INTERNAL_NETMASK4
                             An IPv4 internal netmask obtained by ISAKMP mode
                             config.
                     INTERNAL_CIDR4
                             An IPv4 internal netmask obtained by ISAKMP mode
                             config, in CIDR notation.
                     INTERNAL_DNS4
                             The first internal DNS server IPv4 address
                             obtained by ISAKMP mode config.
                     INTERNAL_DNS4_LIST
                             A list of internal DNS servers IPv4 address
                             obtained by ISAKMP mode config, separated by spa-
                             ces.
                     INTERNAL_WINS4
                             The first internal WINS server IPv4 address
                             obtained by ISAKMP mode config.
                     INTERNAL_WINS4_LIST
                             A list of internal WINS servers IPv4 address
                             obtained by ISAKMP mode config, separated by spa-
                             ces.
                     SPLIT_INCLUDE
                             The space separated list of IPv4 addresses and
                             masks (address slash mask) that define the net-
                             works to be encrypted (as opposed to the default
                             where all the traffic should be encrypted) ;
                             obtained by ISAKMP mode config ; SPLIT_INCLUDE
                             and SPLIT_LOCAL are mutually exclusive.
                     SPLIT_LOCAL
                             The space separated list of IPv4 addresses and
                             masks (address slash mask) that define the net-
                             works to be considered local, and thus excluded
                             from the tunnels ; obtained by ISAKMP mode con-
                             fig.
                     SPLIT_INCLUDE_CIDR
                             Same as SPLIT_INCLUDE, with netmasks in CIDR
                             notation.
                     SPLIT_LOCAL_CIDR
                             Same as SPLIT_LOCAL, with netmasks in CIDR nota-
                             tion.
                     DEFAULT_DOMAIN
                             The DNS default domain name obtained by ISAKMP
                             mode config.
             send_cert (on | off);
                     If you do not want to send a certificate, set this to
                     off.  The default is on.
             send_cr (on | off);
                     If you do not want to send a certificate request, set
                     this to off.  The default is on.
             match_empty_cr (on | off);
                     Specifies whether this remote block is a valid match when
                     a non-specific certificate request is received.  The
                     default is on.
             verify_cert (on | off);
                     By default, the identifier sent by the remote host (as
                     specified in its my_identifier statement) is compared
                     with the credentials in the certificate used to authenti-
                     cate the remote host as follows:
                     Type asn1dn:
                             The entire certificate subject name is compared
                             with the identifier, e.g. "C=XX, O=YY, ...".
                     Type address, fqdn, or user_fqdn:
                             The certificate's subjectAltName is compared with
                             the identifier.
                     If the two do not match the negotiation will fail.  If
                     you do not want to verify the identifier using the peer's
                     certificate, set this to off.
             lifetime time number timeunit;
                     Define a lifetime of a certain time which will be pro-
                     posed in the phase 1 negotiations.  Any proposal will be
                     accepted, and the attribute(s) will not be proposed to
                     the peer if you do not specify it (them).  They can be
                     individually specified in each proposal.
             ike_frag (on | off | force);
                     Enable receiver-side IKE fragmentation if racoon(8) has
                     been built with this feature.  If set to on, racoon will
                     advertise itself as being capable of receiving packets
                     split by IKE fragmentation.  This extension is there to
                     work around broken firewalls that do not work with frag-
                     mented UDP packets.  IKE fragmentation is always enabled
                     on the sender-side, and it is used if the peer advertises
                     itself as IKE fragmentation capable.  By selecting force,
                     IKE Fragmentation will be used when racoon is acting as
                     the initiator even before the remote peer has advertised
                     itself as IKE fragmentation capable.
             esp_frag fraglen;
                     This option is only relevant if you use NAT traversal in
                     tunnel mode.  Its purpose is to work around broken DSL
                     routers that reject UDP fragments, by fragmenting the IP
                     packets before ESP encapsulation.  The result is ESP over
                     UDP of fragmented packets instead of fragmented ESP over
                     UDP packets (i.e., IP:UDP:ESP:frag(IP) instead of
                     frag(IP:UDP:ESP:IP)).  fraglen is the maximum size of the
                     fragments.  552 should work anywhere, but the higher
                     fraglen is, the better the performance.

                     Note that because PMTU discovery is broken on many sites,
                     you will have to use MSS clamping if you want TCP to work
                     correctly.
             initial_contact (on | off);
                     Enable this to send an INITIAL-CONTACT message.  The
                     default value is on.  This message is useful only when
                     the responder implementation chooses an old SA when there
                     are multiple SAs with different established time and the
                     initiator reboots.  If racoon did not send the message,
                     the responder would use an old SA even when a new SA was
                     established.  For systems that use a KAME derived IPSEC
                     stack, the sysctl(8) variable net.key.preferred_oldsa can
                     be used to control this preference.  When the value is
                     zero, the stack always uses a new SA.
             passive (on | off);
                     If you do not want to initiate the negotiation, set this
                     to on.  The default value is off.  It is useful for a
                     server.
             proposal_check level;
                     Specifies the action of lifetime length, key length, and
                     PFS of the phase 2 selection on the responder side, and
                     the action of lifetime check in phase 1.  The default
                     level is strict.  If the level is:
                     obey    The responder will obey the initiator anytime.
                     strict  If the responder's lifetime length is longer than
                             the initiator's or the responder's key length is
                             shorter than the initiator's, the responder will
                             use the initiator's value.  Otherwise, the pro-
                             posal will be rejected.  If PFS is not required
                             by the responder, the responder will obey the
                             proposal.  If PFS is required by both sides and
                             the responder's group is not equal to the initia-
                             tor's, then the responder will reject the pro-
                             posal.
                     claim   If the responder's lifetime length is longer than
                             the initiator's or the responder's key length is
                             shorter than the initiator's, the responder will
                             use the initiator's value.  If the responder's
                             lifetime length is shorter than the initiator's,
                             the responder uses its own length AND sends a
                             RESPONDER-LIFETIME notify message to an initiator
                             in the case of lifetime (phase 2 only).  For PFS,
                             this directive behaves the same as strict.
                     exact   If the initiator's lifetime or key length is not
                             equal to the responder's, the responder will
                             reject the proposal.  If PFS is required by both
                             sides and the responder's group is not equal to
                             the initiator's, then the responder will reject
                             the proposal.
             support_proxy (on | off);
                     If this value is set to on, then both values of ID pay-
                     loads in the phase 2 exchange are always used as the
                     addresses of end-point of IPsec-SAs.  The default is off.
             generate_policy (on | off | require | unique);
                     This directive is for the responder.  Therefore you
                     should set passive to on in order that racoon(8) only
                     becomes a responder.  If the responder does not have any
                     policy in SPD during phase 2 negotiation, and the direc-
                     tive is set to on, then racoon(8) will choose the first
                     proposal in the SA payload from the initiator, and gener-
                     ate policy entries from the proposal.  It is useful to
                     negotiate with clients whose IP address is allocated
                     dynamically.  Note that an inappropriate policy might be
                     installed into the responder's SPD by the initiator, so
                     other communications might fail if such policies are
                     installed due to a policy mismatch between the initiator
                     and the responder.  on and require values mean the same
                     thing (generate a require policy).  unique tells racoon
                     to set up unique policies, with a monotoning increasing
                     reqid number (between 1 and IPSEC_MANUAL_REQID_MAX).
                     This directive is ignored in the initiator case.  The
                     default value is off.
             nat_traversal (on | off | force);
                     This directive enables use of the NAT-Traversal IPsec
                     extension (NAT-T).  NAT-T allows one or both peers to
                     reside behind a NAT gateway (i.e., doing address- or
                     port-translation).  If a NAT gateway is detected during
                     the phase 1 handshake, racoon will attempt to negotiate
                     the use of NAT-T with the remote peer.  If the negotia-
                     tion succeeds, all ESP and AH packets for the given con-
                     nection will be encapsulated into UDP datagrams (port
                     4500, by default).  Possible values are:
                     on      NAT-T is used when a NAT gateway is detected
                             between the peers.
                     off     NAT-T is not proposed/accepted.  This is the
                             default.
                     force   NAT-T is used regardless of whether a NAT gateway
                             is detected between the peers or not.
                     Please note that NAT-T support is a compile-time option.
                     Although it is enabled in the source distribution by
                     default, it may not be available in your particular
                     build.  In that case you will get a warning when using
                     any NAT-T related config options.
             dpd_delay delay;
                     This option activates the DPD and sets the time (in sec-
                     onds) allowed between 2 proof of liveliness requests.
                     The default value is 0, which disables DPD monitoring,
                     but still negotiates DPD support.
             dpd_retry delay;
                     If dpd_delay is set, this sets the delay (in seconds) to
                     wait for a proof of liveliness before considering it as
                     failed and send another request.  The default value is 5.
             dpd_maxfail number;
                     If dpd_delay is set, this sets the maximum number of
                     liveliness proofs to request (without reply) before con-
                     sidering the peer is dead.  The default value is 5.
             rekey (on | off | force);
                     Enable automatic renegotiation of expired phase1 when
                     there are non-dying phase2 SAs.  Possible values are:
                     force   Rekeying is done unconditionally.
                     on      Rekeying is done only if DPD monitoring is
                             active.  This is the default.
                     off     No automatic rekeying.  Do note that turning off
                             automatic rekeying will result in inaccurate DPD
                             monitoring.
             nonce_size number;
                     define the byte size of nonce value.  Racoon can send any
                     value although RFC2409 specifies that the value MUST be
                     between 8 and 256 bytes.  The default size is 16 bytes.
             ph1id number;
                     An optional number to identify the remote proposal and to
                     link it only with sainfos who have the same number.
                     Defaults to 0.
             proposal { sub-substatements }
                     encryption_algorithm algorithm;
                             Specifies the encryption algorithm used for the
                             phase 1 negotiation.  This directive must be
                             defined.  algorithm is one of following: des,
                             3des, blowfish, cast128, aes, camellia for Oak-
                             ley.  For other transforms, this statement should
                             not be used.
                     hash_algorithm algorithm;
                             Defines the hash algorithm used for the phase 1
                             negotiation.  This directive must be defined.
                             algorithm is one of following: md5, sha1, sha256,
                             sha384, sha512 for Oakley.
                     authentication_method type;
                             Defines the authentication method used for the
                             phase 1 negotiation.  This directive must be
                             defined.  type is one of: pre_shared_key, rsasig
                             (for plain RSA authentication), gssapi_krb,
                             hybrid_rsa_server, hybrid_rsa_client,
                             xauth_rsa_server, xauth_rsa_client,
                             xauth_psk_server or xauth_psk_client.
                     dh_group group;
                             Defines the group used for the Diffie-Hellman
                             exponentiations.  This directive must be defined.
                             group is one of following: modp768, modp1024,
                             modp1536, modp2048, modp3072, modp4096, modp6144,
                             modp8192.  Or you can define 1, 2, 5, 14, 15, 16,
                             17, or 18 as the DH group number.  When you want
                             to use aggressive mode, you must define the same
                             DH group in each proposal.
                     lifetime time number timeunit;
                             Defines the lifetime of the phase 1 SA proposal.
                             Refer to the description of the lifetime direc-
                             tive defined in the remote directive.
                     gss_id string;
                             Defines the GSS-API endpoint name, to be included
                             as an attribute in the SA, if the gssapi_krb
                             authentication method is used.  If this is not
                             defined, the default value of `host/hostname' is
                             used, where hostname is the value returned by the
                             hostname(1) command.

     remote (address | anonymous) [[port]] [inherit parent] { statements }
             Deprecated format of specifying a remote block.  This will be
             removed in future.  It is a remnant from time when remote block
             was decided solely based on the peers IP address.

             This is equivalent to:

             remote "address" [inherit "parent-address"] {
                     remote_address address;
             }

   Sainfo Specifications
     sainfo (local_id | anonymous) (remote_id | clientaddr | anonymous) [from
             idtype [string]] [group string] { statements }
             Defines the parameters of the IKE phase 2 (IPsec-SA establish-
             ment).

             The local_id and remote_id strings are constructed like:

             address address [/ prefix] [[port]] ul_proto

             or

             subnet address [/ prefix] [[port]] ul_proto

             An id string should be expressed to match the exact value of an
             ID payload.  This is not like a filter rule.  For example, if you
             define 3ffe:501:4819::/48 as local_id.  3ffe:501:4819:1000:/64
             will not match.  In the case of a longest prefix (selecting a
             single host), address instructs to send ID type of ADDRESS while
             subnet instructs to send ID type of SUBNET.  Otherwise, these
             instructions are identical.

             The anonymous keyword can be used to match any id.  The
             clientaddr keyword can be used to match a remote id that is equal
             to either the peer ip address or the mode_cfg ip address (if
             assigned).  This can be useful to restrict policy generation when
             racoon is acting as a client gateway for peers with dynamic ip
             addresses.

             The from keyword allows an sainfo to only match for peers that
             use a specific phase1 id value during authentication.  The group
             keyword allows an XAuth group membership check to be performed
             for this sainfo section.  When the mode_cfg auth source is set to
             system or ldap, the XAuth user is verified to be a member of the
             specified group before allowing a matching SA to be negotiated.

             pfs_group group;
                     define the group of Diffie-Hellman exponentiations.  If
                     you do not require PFS then you can omit this directive.
                     Any proposal will be accepted if you do not specify one.
                     group is one of following: modp768, modp1024, modp1536,
                     modp2048, modp3072, modp4096, modp6144, modp8192.  Or you
                     can define 1, 2, 5, 14, 15, 16, 17, or 18 as the DH group
                     number.
             lifetime time number timeunit;
                     define how long an IPsec-SA will be used, in timeunits.
                     Any proposal will be accepted, and no attribute(s) will
                     be proposed to the peer if you do not specify it(them).
                     See the proposal_check directive.
             remoteid number;
                     Sainfos will only be used if their remoteid matches the
                     ph1id of the remote section used for phase 1.  Defaults
                     to 0, which is also the default for ph1id.

             racoon(8) does not have a list of security protocols to be nego-
             tiated.  The list of security protocols are passed by SPD in the
             kernel.  Therefore you have to define all of the potential algo-
             rithms in the phase 2 proposals even if there are algorithms
             which will not be used.  These algorithms are define by using the
             following three directives, with a single comma as the separator.
             For algorithms that can take variable-length keys, algorithm
             names can be followed by a key length, like ``blowfish 448''.
             racoon(8) will compute the actual phase 2 proposals by computing
             the permutation of the specified algorithms, and then combining
             them with the security protocol specified by the SPD.  For exam-
             ple, if des, 3des, hmac_md5, and hmac_sha1 are specified as algo-
             rithms, we have four combinations for use with ESP, and two for
             AH.  Then, based on the SPD settings, racoon(8) will construct
             the actual proposals.  If the SPD entry asks for ESP only, there
             will be 4 proposals.  If it asks for both AH and ESP, there will
             be 8 proposals.  Note that the kernel may not support the algo-
             rithm you have specified.
             encryption_algorithm algorithms;
                     des, 3des, des_iv64, des_iv32, rc5, rc4, idea, 3idea,
                     cast128, blowfish, null_enc, twofish, rijndael, aes,
                     camellia (used with ESP)
             authentication_algorithm algorithms;
                     des, 3des, des_iv64, des_iv32, hmac_md5, hmac_sha1,
                     hmac_sha256, hmac_sha384, hmac_sha512, non_auth (used
                     with ESP authentication and AH)
             compression_algorithm algorithms;
                     deflate (used with IPComp)

   Logging level
     log level;
             Defines the logging level.  level is one of following: error,
             warning, notify, info, debug or debug2.  The default is info.  If
             you set the logging level too high on slower machines, IKE nego-
             tiation can fail due to timing constraint changes.

   Specifies the way to pad
     padding { statements }
             specifies the padding format.  The following are valid state-
             ments:
             randomize (on | off);
                     Enables the use of a randomized value for padding.  The
                     default is on.
             randomize_length (on | off);
                     The pad length will be random.  The default is off.
             maximum_length number;
                     Defines a maximum padding length.  If randomize_length is
                     off, this is ignored.  The default is 20 bytes.
             exclusive_tail (on | off);
                     Means to put the number of pad bytes minus one into the
                     last part of the padding.  The default is on.
             strict_check (on | off);
                     Means to constrain the peer to set the number of pad
                     bytes.  The default is off.

   ISAKMP mode configuration settings
     mode_cfg { statements }
             Defines the information to return for remote hosts' ISAKMP mode
             config requests.  Also defines the authentication source for
             remote peers authenticating through Xauth.

             The following are valid statements:
             auth_source (system | radius | pam | ldap);
                     Specifies the source for authentication of users through
                     Xauth.  system means to use the Unix user database.  This
                     is the default.  radius means to use a RADIUS server.  It
                     works only if racoon(8) was built with libradius support.
                     Radius configuration is handled by statements in the
                     radiuscfg section.  pam means to use PAM.  It works only
                     if racoon(8) was built with libpam support.  ldap means
                     to use LDAP.  It works only if racoon(8) was built with
                     libldap support.  LDAP configuration is handled by state-
                     ments in the ldapcfg section.
             auth_groups group1, ...;
                     Specifies the group memberships for Xauth in quoted group
                     name strings.  When defined, the authenticating user must
                     be a member of at least one group for Xauth to succeed.
             group_source (system | ldap);
                     Specifies the source for group validation of users
                     through Xauth.  system means to use the Unix user data-
                     base.  This is the default.  ldap means to use LDAP.  It
                     works only if racoon(8) was built with libldap support
                     and requires LDAP authentication.  LDAP configuration is
                     handled by statements in the ldapcfg section.
             conf_source (local | radius | ldap);
                     Specifies the source for IP addresses and netmask allo-
                     cated through ISAKMP mode config.  local means to use the
                     local IP pool defined by the network4 and pool_size
                     statements.  This is the default.  radius means to use a
                     RADIUS server.  It works only if racoon(8) was built with
                     libradius support and requires RADIUS authentication.
                     RADIUS configuration is handled by statements in the
                     radiuscfg section.  ldap means to use an LDAP server.  It
                     works only if racoon(8) was built with libldap support
                     and requires LDAP authentication.  LDAP configuration is
                     handled by statements in the ldapcfg section.
             accounting (none | system | radius | pam);
                     Enables or disables accounting for Xauth logins and
                     logouts.  The default is none which disable accounting.
                     Specifying system enables system accounting through
                     utmp(5).  Specifying radius enables RADIUS accounting.
                     It works only if racoon(8) was built with libradius sup-
                     port and requires RADIUS authentication.  RADIUS configu-
                     ration is handled by statements in the radiuscfg section.
                     Specifying pam enables PAM accounting.  It works only if
                     racoon(8) was build with libpam support and requires PAM
                     authentication.
             pool_size size
                     Specify the size of the IP address pool, either local or
                     allocated through RADIUS.  conf_source selects the local
                     pool or the RADIUS configuration, but in both configura-
                     tions, you cannot have more than size users connected at
                     the same time.  The default is 255.
             network4 address;
             netmask4 address;
                     The local IP pool base address and network mask from
                     which dynamically allocated IPv4 addresses should be
                     taken.  This is used if conf_source is set to local or if
                     the RADIUS server returned 255.255.255.254.  Default is
                     0.0.0.0/0.0.0.0.
             dns4 addresses;
                     A list of IPv4 addresses for DNS servers, separated by
                     commas, or on multiple dns4 lines.
             wins4 addresses;
                     A list of IPv4 address for WINS servers.  The keyword
             nbns4   can also be used as an alias for
             wins4.
             split_network (include | local_lan) network/mask, ...
                     The network configuration to send, in CIDR notation (e.g.
                     192.168.1.0/24).  If include is specified, the tunnel
                     should be only used to encrypt the indicated destinations
                     ; otherwise, if local_lan is used, everything will pass
                     through the tunnel but those destinations.
             default_domain domain;
                     The default DNS domain to send.
             split_dns domain, ...
                     The split dns configuration to send, in quoted domain
                     name strings.  This list can be used to describe a list
                     of domain names for which a peer should query a modecfg
                     assigned dns server.  DNS queries for all other domains
                     would be handled locally.  (Cisco VPN client only).
             banner path;
                     The path of a file displayed on the client at connection
                     time.  Default is /etc/motd.
             auth_throttle delay;
                     On each failed Xauth authentication attempt, refuse new
                     attempts for a set delay of seconds.  This is to avoid
                     dictionary attacks on Xauth passwords.  Default is one
                     second.  Set to zero to disable authentication delay.
             pfs_group group;
                     Sets the PFS group used in the client proposal (Cisco VPN
                     client only).  Default is 0.
             save_passwd (on | off);
                     Allow the client to save the Xauth password (Cisco VPN
                     client only).  Default is off.

   Ldap configuration settings
     ldapcfg { statements }
             Defines the parameters that will be used to communicate with an
             ldap server for xauth authentication.

             The following are valid statements:
             version (2 | 3);
                     The ldap protocol version used to communicate with the
                     server.  The default is 3.
             host (hostname | address);
                     The host name or ip address of the ldap server.  The
                     default is localhost.
             port number;
                     The port that the ldap server is configured to listen on.
                     The default is 389.
             tls (on | off);
                     Use TLS with the ldap server.  The default is off.
             base distinguished name;
                     The ldap search base.  This option has no default value.
             subtree (on | off);
                     Use the subtree ldap search scope.  Otherwise, use the
                     one level search scope.  The default is off.
             bind_dn distinguished name;
                     The user dn used to optionally bind as before performing
                     ldap search operations.  If this option is not specified,
                     anonymous binds are used.
             bind_pw string;
                     The password used when binding as bind_dn.
             attr_user attribute name;
                     The attribute used to specify a users name in an ldap
                     directory.  For example, if a user dn is
                     "cn=jdoe,dc=my,dc=net" then the attribute would be "cn".
                     The default value is cn.
             attr_addr attribute name;
             attr_mask attribute name;
                     The attributes used to specify a users network address
                     and subnet mask in an ldap directory.  These values are
                     forwarded during mode_cfg negotiation when the
                     conf_source is set to ldap.  The default values are
                     racoon-address and racoon-netmask.
             attr_group attribute name;
                     The attribute used to specify a group name in an ldap
                     directory.  For example, if a group dn is
                     "cn=users,dc=my,dc=net" then the attribute would be "cn".
                     The default value is cn.
             attr_member attribute name;
                     The attribute used to specify group membership in an ldap
                     directory.  The default value is member.

   Radius configuration settings
     radiuscfg { statements }
             Defines the parameters that will be used to communicate with
             radius servers for xauth authentication.  If radius is selected
             as the xauth authentication or accounting source and no servers
             are defined in this section, settings from the system
             radius.conf(5) configuration file will be used instead.

             The following are valid statements:
             auth (hostname | address) [port] sharedsecret;
                     The host name or ip address, optional port value and
                     shared secret value of a radius authentication server.
                     Up to 5 radius authentication servers may be specified
                     using multiple lines.
             acct (hostname | address) [port] sharedsecret;
                     The host name or ip address, optional port value and
                     shared secret value of a radius accounting server.  Up to
                     5 radius accounting servers may be specified using multi-
                     ple lines.
             timeout seconds;
                     The timeout for receiving replies from radius servers.
                     The default is 3.
             retries count;
                     The maximum number of repeated requests to make before
                     giving up on a radius server.  The default is 3.

   Special directives
     complex_bundle (on | off);
             defines the interpretation of proposal in the case of SA bundle.
             Normally ``IP AH ESP IP payload'' is proposed as ``AH tunnel and
             ESP tunnel''.  The interpretation is more common to other IKE
             implementations, however, it allows very limited set of combina-
             tions for proposals.  With the option enabled, it will be pro-
             posed as ``AH transport and ESP tunnel''.  The default value is
             off.

   Pre-shared key File
     The pre-shared key file defines pairs of identifiers and corresponding
     shared secret keys which are used in the pre-shared key authentication
     method in phase 1.  The pair in each line is separated by some number of
     blanks and/or tab characters like in the hosts(5) file.  Key can include
     blanks because everything after the first blanks is interpreted as the
     secret key.  Lines starting with `#' are ignored.  Keys which start with
     `0x' are interpreted as hexadecimal strings.  Note that the file must be
     owned by the user ID running racoon(8) (usually the privileged user), and
     must not be accessible by others.

EXAMPLES
     The following shows how the remote directive should be configured.

     path pre_shared_key "/usr/local/v6/etc/psk.txt" ;
     remote anonymous
     {
             exchange_mode aggressive,main,base;
             lifetime time 24 hour;
             proposal {
                     encryption_algorithm 3des;
                     hash_algorithm sha1;
                     authentication_method pre_shared_key;
                     dh_group 2;
             }
     }

     sainfo anonymous
     {
             pfs_group 2;
             lifetime time 12 hour ;
             encryption_algorithm 3des, blowfish 448, twofish, rijndael ;
             authentication_algorithm hmac_sha1, hmac_md5 ;
             compression_algorithm deflate ;
     }

     If you are configuring plain RSA authentication, the remote directive
     should look like the following:

     path certificate "/usr/local/v6/etc" ;
     remote anonymous
     {
             exchange_mode main,base ;
             lifetime time 12 hour ;
             certificate_type plain_rsa "/usr/local/v6/etc/myrsakey.priv";
             peers_certfile plain_rsa "/usr/local/v6/etc/yourrsakey.pub";
             proposal {
                             encryption_algorithm aes ;
                             hash_algorithm sha1 ;
                             authentication_method rsasig ;
                             dh_group 2 ;
             }
     }

     The following is a sample for the pre-shared key file.

     10.160.94.3     mekmitasdigoat
     172.16.1.133    0x12345678
     194.100.55.1    whatcertificatereally
     3ffe:501:410:ffff:200:86ff:fe05:80fa    mekmitasdigoat
     3ffe:501:410:ffff:210:4bff:fea2:8baa    mekmitasdigoat
     foo@kame.net    mekmitasdigoat
     foo.kame.net    hoge

SEE ALSO
     racoon(8), racoonctl(8), setkey(8)

HISTORY
     The racoon.conf configuration file first appeared in the ``YIPS'' Yoko-
     gawa IPsec implementation.

BUGS
     Some statements may not be handled by racoon(8) yet.

     Diffie-Hellman computation can take a very long time, and may cause
     unwanted timeouts, specifically when a large D-H group is used.

SECURITY CONSIDERATIONS
     The use of IKE phase 1 aggressive mode is not recommended, as described
     in http://www.kb.cert.org/vuls/id/886601.

NetBSD 6.0.1                   November 15, 2011                  NetBSD 6.0.1

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