RE: iptables and virtual NIC

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On Thursday 2011-07-28 12:05, Kumar Swamy wrote:

>Hello folks, 
>
>I am a newbie to iptables and experimenting some stuff.  So please excuse me, if this has already been discussed.
>
>I have a linux gateway which has a physical interface (eth0 ) and multiple virtual interfaces ( eth0:1, eth0:2), each has dynamic IP configured.
>I want to create an iptables rule for  IP masquerading on eth0 , but 
>packets going out on other interfaces should be left untouched. Is this 
>possible?

Those are no interfaces. You are being deceived. My hint -
stop using ifconfig.
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