IPNAT(8)                                                 IPNAT(8)


NAME
       ipnat - user interface to the NAT

SYNOPSIS
       ipnat [ -lnrsvCF ] -f <filename>

DESCRIPTION
       ipnat opens the filename given (treating "-" as stdin) and
       parses the file for a set of rules which are to  be  added
       or removed from the IP NAT.

       Each  rule  processed  by  ipnat  is  added to the kernels
       internal lists if there are no  parsing  problems.   Rules
       are  added  to the end of the internal lists, matching the
       order in which they appear when given to ipnat.

       Note that if ipf(8) is not enabled when NAT is configured,
       it  will  be  enabled  automatically,  as  the same kernel
       facilities are used for NAT functionality.   In  addition,
       packet  forwarding  must  be  enabled.  See options(4) and
       sysctl(8) for more information.

OPTIONS
       -C     delete all entries in the current NAT rule  listing
              (NAT rules)

       -F     delete all active entries in the current NAT trans-
              lation table (currently active NAT mappings)

       -l     Show the list of current NAT table entry  mappings.

       -n     This  flag  (no-change)  prevents ipf from actually
              making any ioctl  calls  or  doing  anything  which
              would alter the currently running kernel.

       -s     Retrieve and display NAT statistics

       -r     Remove  matching  NAT rules rather than add them to
              the internal lists

       -v     Turn verbose mode on.  Displays information  relat-
              ing  to  rule  processing  and  active  rules/table
              entries.

FILES
       /dev/ipnat
       /usr/share/examples/ipf  Directory with examples.

SEE ALSO
       ipnat(5), ipf(8), ipfstat(8)







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