Re: Network renumbering

[RahulKrishna Gupta <rkgsubscribe operamail com>]

Rodolfo J. Paiz wrote:

> Hi!
>
> I'm moving my servers to a new network (same provider), so for a while 
> I need to have two IP addresses for each server on the same interface 
> and with the same services on both. Two questions:
>
> 1) Would I make one interface eth0 and the other eth0:0? Or, since I'm 
> using virtual interfaces, do I cease to use eth0 totally and instead 
> use eth0:0 and eth0:1? Or does it matter at all?
>
> 2) I have a huge script that sets up all my firewall rules. Now I need 
> two runs through the script, one for each IP address (they will offer 
> identical services). Is the following syntax correct?
>
> for IPADDR in 111.111.111.111 222.222.222.222 ; do {
>         ipchains -A input -i eth0 -p tcp  -d $IPADDR -j ACCEPT
>         ipchains -A input -i eth0 -p udp  -d $IPADDR -j ACCEPT
>         ipchains -A input -i eth0 -p icmp -d $IPADDR -j ACCEPT
>         }
> done
>
> Thanks so much...
>
>
> --
> Rodolfo J. Paiz
> rpaiz indahaus com
>
>
>
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1) it does not matter but it would be more logical to use eth0, eth0:0, 
eth0:1..........

2) It should work.

-RKG