ipnat(8) - NetBSD Manual Pages

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IPNAT(8)                                                              IPNAT(8)




NAME

       ipnat - user interface to the NAT subsystem


SYNOPSIS

       ipnat [ -dhlnrsvCF ] [ -M core ] [ -N system ] -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)

       -d     Enable printing of some extra debugging information.

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

       -h     Print number of hits for each MAP/Redirect filter.

       -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.

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

       -s     Retrieve and display NAT statistics.

       -v     Turn  verbose  mode  on.   Displays information relating 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)



                                                                      IPNAT(8)