[Bridge] Bridge responds on its IP address even when br0 is down.

[Stephen Hemminger]

On Wed, 9 Jun 2010 16:46:01 +0200
Joakim Tjernlund <joakim.tjernlund at transmode.se> wrote:

> 
> System A:
> eth0 has ip 192.168.1.16
> 
> Then do in system A
> brctl addbr br0
> ifconfig br0 192.168.1.18 down
> 
> 
> From system B I ping 192.168.1.18
> and system A responds!
> 
> Even though interface br0 is down I can still
> access system A with 192.168.1.18, this feels
> like a bridge bug?
> 

No that is how Linux works. All addresses are property of the
system not the interface.
   http://en.wikipedia.org/wiki/Host_model