more info on what a bridge is (from bridge(4)).

1 files changed, 10 insertions, 1 deletions

diff --git a/sbin/brconfig/brconfig.8 b/sbin/brconfig/brconfig.8
index 8a6625cb298..a39f18113a7 100644
--- a/sbin/brconfig/brconfig.8
+++ b/sbin/brconfig/brconfig.8
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: brconfig.8,v 1.11 2000/05/02 18:51:04 jason Exp $
+.\"	$OpenBSD: brconfig.8,v 1.12 2000/06/20 20:22:12 jason Exp $
 .\"
 .\" Copyright (c) 1999, 2000 Jason L. Wright (jason@thought.net)
 .\" All rights reserved.
@@ -53,6 +53,15 @@ The
 .Nm brconfig
 utility retrieves kernel state of bridge interfaces and allows
 user control of these bridges.
+Bridge devices create a logical link between two or more Ethernet interfaces
+or encapsulation interfaces (see
+.Xr 4 ),
+which will selectively forward frames from each interface on the bridge
+to every other interface on the bridge.
+This can be used to isolate traffic between sets of machines on the same
+segment and to provide a transparent filter for
+.Xr ip 4
+datagrams.
 .Pp
 In the first synopsis, the command
 will list the status of all bridges in the system.