On Wed, 9 Jun 2010 18:30:17 +0200 Joakim Tjernlund <[email protected]> wrote:
> Stephen Hemminger <[email protected]> wrote on 2010/06/09 > 17:23:19: > > > > On Wed, 9 Jun 2010 16:46:01 +0200 > > Joakim Tjernlund <[email protected]> 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 > > I see, I know the about the host model but I was surprised it applied > to interfaces that is down. Does it not make sense to exclude the > IP address when the I/F is down? Responding on a all interfaces all the time does make sense on a multi-homed server (which was the original Linux use case), but it does on a router. There is a configurable value in to control it in Vyatta to handle that. The patch got rejected when submitted upstream because of the developers worries about breaking existing applications. _______________________________________________ Bridge mailing list [email protected] https://lists.linux-foundation.org/mailman/listinfo/bridge
