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)