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author | des <des@FreeBSD.org> | 1999-03-20 10:25:40 +0000 |
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committer | des <des@FreeBSD.org> | 1999-03-20 10:25:40 +0000 |
commit | fc7305ab3bfcb8737ee1a74f805ff63148cc3510 (patch) | |
tree | ac28529d533ae06aa4036130f08efc149b58f13e /share/man | |
parent | 0f81341182cb110610013cf015bec8e64b272e8e (diff) | |
download | FreeBSD-src-fc7305ab3bfcb8737ee1a74f805ff63148cc3510.zip FreeBSD-src-fc7305ab3bfcb8737ee1a74f805ff63148cc3510.tar.gz |
Document net.inet.ip.fastforwarding, and the fact that it bypasses the
ipfirewall code.
Submitted by: Ruslan Ermilov <ru@ucb.crimea.ua>
Diffstat (limited to 'share/man')
-rw-r--r-- | share/man/man4/inet.4 | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/share/man/man4/inet.4 b/share/man/man4/inet.4 index bc0bbcb..47ab29a 100644 --- a/share/man/man4/inet.4 +++ b/share/man/man4/inet.4 @@ -30,7 +30,7 @@ .\" SUCH DAMAGE. .\" .\" From: @(#)inet.4 8.1 (Berkeley) 6/5/93 -.\" $Id$ +.\" $Id: inet.4,v 1.8 1997/02/22 13:24:32 peter Exp $ .\" .Dd February 14, 1995 .Dt INET 4 @@ -209,19 +209,28 @@ A number of variables are implemented in the net.inet branch of the MIB. In addition to the variables supported by the transport protocols (for which see the respective manual pages), the following general variables are defined: -.Bl -tag -width IPCTL_SENDREDIRECTS +.Bl -tag -width IPCTL_FASTFORWARDING .It Dv IPCTL_FORWARDING .Pq ip.forwarding -Boolean: enable/disable forwarding of IP packets (default depends on -the -.Dv GATEWAY -kernel configuration option). +Boolean: enable/disable forwarding of IP packets. +Defaults to off. +.It Dv IPCTL_FASTFORWARDING +.Pq ip.fastforwarding +Boolean: enable/disable the use of fast IP forwarding code. +Defaults to off. +When fast forwarding is enabled, IP packets are forwarded directly to +the appropriate network interface with a minimal validity checking, which +greatly improves the throughput. On the other hand, they bypass the +standard procedures, such as IP option processing and +.Xr ipfirewall 4 +checking. +It is not guaranteed that every packet will be fast-forwarded. .It Dv IPCTL_SENDREDIRECTS .Pq ip.redirect Boolean: enable/disable sending of ICMP redirects in response to unforwardable .Tn IP -packets (default true). +packets. Defaults to on. .It Dv IPCTL_DEFTTL .Pq ip.ttl Integer: default time-to-live @@ -256,6 +265,7 @@ which initiates dynamic adaptation (default 128). .Xr igmp 4 , .Xr intro 4 , .Xr ip 4 , +.Xr ipfirewall 4 , .Xr tcp 4 , .Xr ttcp 4 , .Xr udp 4 |