tree ba28fcd6637d848bbee4a6e22f642a69cbe1c71f
parent cf0f02d04a830c8202e6a8f8bb37acc6c1629a91
author Stephen Hemminger <shemminger@osdl.org> 1142924361 -0800
committer David S. Miller <davem@davemloft.net> 1142924361 -0800

[BRIDGE]: allow show/store of group multicast address

Bridge's communicate with each other using Spanning Tree Protocol
over a standard multicast address. There are times when testing or
layering bridges over existing topologies or tunnels, when it is
useful to use alternative multicast addresses for STP packets.

The 802.1d standard has some unused addresses, that can be used for this.
This patch is restrictive in that it only allows one of the possible
addresses in the standard.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>