ipfw

IPFW(4)                   BSD Kernel Interfaces Manual                   IPFW(4)

NAME
     ipfw — IP packet filter and traffic accounting

DESCRIPTION
     The ipfw system facility allows filtering, redirecting, and other
     operations on IP packets travelling through network interfaces.

     The user interface for ipfw is implemented by the ipfw(8) utility, so
     please refer to the ipfw(8) manpage for a complete description of the ipfw
     capabilities and how to use it.

   Kernel Options
     The following options in the kernel configuration file are related to ipfw
     operation:

     IPFIREWALL                enable ipfw
     IPFIREWALL_VERBOSE        enable ipfw logging
     IPFIREWALL_VERBOSE_LIMIT  limit ipfw logging
     IPDIVERT                  enable divert(4) sockets

SEE ALSO
     setsockopt(2), divert(4), ip(4), ipfw(8), sysctl(8), syslogd(8), pfil(9)

BSD                             October 28, 2002                             BSD