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authorPhilipp Buehler <pb@cvs.openbsd.org>2003-06-11 17:03:10 +0000
committerPhilipp Buehler <pb@cvs.openbsd.org>2003-06-11 17:03:10 +0000
commit268bcc476d57b2b9617025eb6e3df88d03877431 (patch)
treec96838a607685e0a28d8b511d9a278fc8f5b6a03 /share/man/man4
parent8807fce6bb1f537975c3edd1465e6dc58cc14700 (diff)
document that is is unsupported to use return-rst/icmp or synproxy
on bridging firewalls henning@ ok, spelling fixes from jmc@
Diffstat (limited to 'share/man/man4')
-rw-r--r--share/man/man4/bridge.412
1 files changed, 11 insertions, 1 deletions
diff --git a/share/man/man4/bridge.4 b/share/man/man4/bridge.4
index 4480515699a..08c65045a39 100644
--- a/share/man/man4/bridge.4
+++ b/share/man/man4/bridge.4
@@ -1,4 +1,4 @@
-.\" $OpenBSD: bridge.4,v 1.50 2003/06/06 10:29:41 jmc Exp $
+.\" $OpenBSD: bridge.4,v 1.51 2003/06/11 17:03:09 pb Exp $
.\"
.\" Copyright (c) 1999-2001 Jason L. Wright (jason@thought.net)
.\" All rights reserved.
@@ -584,6 +584,16 @@ and destination addresses reversed between interfaces, two state
entries (one for each direction) are required when all interfaces
are filtered statefully.
.Pp
+It is unsupported to use filter rules which would generate packets.
+This applies to rules with
+.Ar return ,
+.Ar return-rst ,
+.Ar return-icmp ,
+.Ar return-icmp6
+or
+.Ar synproxy
+defined.
+.Pp
If an IP packet is too large for the outgoing interface the bridge
will perform IP fragmentation.
This can happen when bridge members