kern/102607: [if_bridge] don't generate random L2 address

[Stefan Bethke]

The following reply was made to PR kern/102607; it has been noted by GNATS.

From: Stefan Bethke <stb at lassitu.de>
To: bug-followup at FreeBSD.org
Cc:  
Subject: Re: kern/102607: [if_bridge] don't generate random L2 address
Date: Sun, 3 Sep 2006 01:09:16 +0200

 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