Date: Fri, 1 Sep 2006 18:56:26 +0200 From: Stefan Bethke <stb@lassitu.de> To: Andrew Thompson <thompsa@freebsd.org> Cc: freebsd-net@freebsd.org, freebsd-bugs@freebsd.org Subject: Re: kern/102607: [if_bridge] don't generate random L2 address Message-ID: <0E290FAC-9BA0-4AA4-B85B-2DFBCA324672@lassitu.de> In-Reply-To: <200608281819.k7SIJC51043066@freefall.freebsd.org> References: <200608281819.k7SIJC51043066@freefall.freebsd.org>
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Here's my suggestion for an addition to if_bridge(4):
--- if_bridge.4.orig Sun Aug 13 20:44:18 2006
+++ if_bridge.4 Fri Sep 1 18:53:19 2006
@@ -107,6 +107,13 @@
in
.Xr rc.conf 5 .
.Pp
+The
+.Nm
+interface randomly chooses a link (MAC) address in the range
reserved for
+locally adminstered addresses when it is created.
+The address can be changed by assigning the desired link address using
+.Xr ifconfig 8 .
+.Pp
The MTU of the first member interface to be added is used as the
bridge MTU.
All additional members are required to have exactly the same value.
.Pp
@@ -231,6 +238,16 @@
addm fxp6 stp fxp6 \e
addm fxp7 stp fxp7 \e
up
+.Ed
+.Pp
+The bridge can be used as a regular host interface at the same time as
+bridging between it's member ports. In this example, the bridge
connects em0
+and em1, and will receive it's IP address through DHCP:
+.Bd -literal -offset indent
+cloned_interfaces="bridge0"
+ifconfig_bridge0="link 12:34:56:78:9a:bc addm em0 addm em0 DHCP"
+ifconfig_em0="up"
+ifconfig_em1="up"
.Ed
.Pp
The bridge can tunnel Ethernet across an IP internet using the EtherIP
--
Stefan Bethke <stb@lassitu.de> Fon +49 170 346 0140
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