Alex Whiteside wrote:
> 
> 
> On Sat, Sep 27, 2008 at 12:44 AM, Tom Eastep <[EMAIL PROTECTED]
> <mailto:[EMAIL PROTECTED]>> wrote:
>
> 
>     Why? The most natural thing to do is to create the bridge and make the
>     bridge the third interface. The bridge serves to connect the Virtual
>     Machine to the Firewall.
> 
> 
> Okay, so what you are saying is
> 
> eth0 has a auto ip, and br0 is set to manual or auto? When br0 is on
> auto it gets the same ip as eth0.
> 
> Sorry Im just a bit confused on how to approach this, maybe you can give
> some pointers?
>  

I'm saying, DON'T BRIDGE eth0!

> 
> 
> 
>     >
>     > Now lets go back to two interface and change eth1 to br0, Lets say
>     dont
>     > allow loc access to (net), what happens? The whole server cannot
>     see the
>     > internet, because it is bridged through br0.
> 
>     I don't understand that paragraph.
> 
> 
> Basically, for some reason, when i create a bridge br0 based on eth0, my
> whole internet connection wants to route through br0 instead of eth0, so
> therefore i cannot control this.

DON'T BRIDGE eth0.

Given the reduced support for bridges in kernels 2.6.20 and later, I
would not use a bridge between the internet and your KVM server. If you
bridge eth0, you won't be able to control loc->DMZ traffic separately
from loc->net traffic; I don't think you want that restriction. I would
rather make the bridge a standalone bridge with an RFC 1918 address,
just as I do in the Shorewall KVM article. You can then use port
forwarding from eth0 to the server.

-Tom
-- 
Tom Eastep    \ The ultimate result of shielding men from the effects of
Shoreline,     \ folly is to fill the world with fools.
Washington, USA \                                     -- Herbert Spencer
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