Re: [vserver] Static Route on Loopback

From: Herbert Poetzl <>
Date: Mon 18 Oct 2010 - 01:47:11 BST
Message-ID: <>

On Sun, Oct 17, 2010 at 05:24:54PM +0100, Gordan Bobic wrote:
> On 17/10/2010 17:07, Herbert Poetzl wrote:
> >On Fri, Oct 15, 2010 at 01:08:22PM +0100, Gordan Bobic wrote:
> >>The problem is that loopback reacts differently. It responds locally
> >>to all addresses in the subnet.

> >>e.g. if you set your loopback, the localhost will
> >>listen to ALL of the addresses in that subnet. If you set it for
> >>, then ALL of the IPs in that subnet will get answered
> >>by localhost, rather than passed out.

> >>Either way, the solution using a dummy NIC works. It turns out the lo
> >>IP bindings were a hangover from before, after I removed them they
> >>didn't come back, so it's all good.

> >>I think this is a point that's worth pointing in the dummy vs lo
> >>argument. With lo, the routing and filtering can be quite unintuitive,
> >>while dummy works exactly as you'd expect.

> >what's the point puting it on dummy, why not put it on
> >the actual interface it will be using anyway, e.g. eth0
> >(or whatever your traffic uses)?

> It won't be using an external interface.

It won't be using dummy0 either

> This is for a guests-only internal interface.

there is no such thing in Linux-VServer


> Gordan
Received on Mon Oct 18 01:47:32 2010

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