diff options
Diffstat (limited to 'sbin/ipfw/ipfw.8')
| -rw-r--r-- | sbin/ipfw/ipfw.8 | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/sbin/ipfw/ipfw.8 b/sbin/ipfw/ipfw.8 index 6c053da..3f4bc9a 100644 --- a/sbin/ipfw/ipfw.8 +++ b/sbin/ipfw/ipfw.8 @@ -1,7 +1,7 @@ .\" .\" $FreeBSD$ .\" -.Dd October 22, 2004 +.Dd February 22, 2005 .Dt IPFW 8 .Os .Sh NAME @@ -672,6 +672,19 @@ This makes the .Xr netstat 1 entry look rather weird but is intended for use with transparent proxy servers. +.Pp +To enable +.Cm fwd +a custom kernel needs to be compiled with the option +.Cd "options IPFIREWALL_FORWARD" . +With the additional option +.Cd "options IPFIREWALL_FORWARD_EXTENDED" +all safeguards are removed and it also makes it possible to redirect +packets destined to locally configured IP addresses. +Please note that such rules apply to locally generated packets as +well and great care is required to ensure proper behaviour for +automatically generated packets like ICMP message size exceeded +and others. .It Cm pipe Ar pipe_nr Pass packet to a .Xr dummynet 4 |
