Re: [Bridge] [PATCH] Add vlan id to bridge forward database

[Jonathan Thibault <jonathan@navigue.com>]

I've been trying to get something like that to work for over a year now. 
  It mostly works, only the bridge will stop forwarding some arp replies 
coming in from a non-vlan interface to the trunk.  Bridge sees the 
replies but they never make it onto the wire.  If this was an STP (it's 
not enabled) issue, I assume the port would simply stop forwarding 
alltogether, not just ARP *replies*.

(yeah, I know I sound like a broken record to those who've been 
following my posts ;)

If there's any tests I can do to help on that front, just ask!  I would 
be happy just knowing *why* it doesn't work so far but I don't know the 
code well enough to figure out where the packets might get discarded.

Jonathan

richardvoigt@gmail.com wrote:

> 
> That's for bridging a trunk, but what about bridging between vlans:
> 
> vconfig add eth0 5
> vconfig add eth0 6
> brctl add br0 eth0.5
> brctl add br0 eth0.6
> 
> While you could combine the vlans, doing this allows you to force all
> traffic through packet filtering/traffic shaping/IDS.
> 
> Usually you wouldn't then see the same MAC on two different VLAN but
> you might on spanning tree packets.