assigning an IP with ifconfig

How do I do it?
eth1 needs to have its IP changed.
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ifconfig eth1 <new address> netmask <mask here> up

* The effects of using the ifconfig command will not carry over a reboot unless you arrange for the ifconfig command to be executed in the network startup

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dissolvedAuthor Commented:
Thanks. One other thing you may know: when you run a multihomed box, do you need both interfaces in separate networks?
Im doing some security testing with dsniff (arpspoofing). Do I need to have both interfaces in separate networks?

A single computer can have two network interfaces on the same network.

I wouldn't call it multihoming though: multihoming is when your network
has multiple  ISPs and your routing system needs to pick between them
and dynamically adjust your routes, usually utilizing a protocol such
as BGP.
dissolvedAuthor Commented:
thanks. perhaps you could assist answering this too? :D
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