> Since everyone likes to point their fingers toward security, I'll say
> "nu-uh". If the other machines on the network don't have routable IP's,
> then machines outside of his local network still can't get to the
> machines inside his network, and the Linux box still gets to work as a
> firewall. This could be done by configuring the NIC with a real IP, and
> an IP alias that isn't routable. The only real down (that I can see) is
> that all the network traffic is broadcast on the network twice, which
> shouldn't be a problem if you're only using it for a cable modem.
Is there any way that you can gurantee that the cable modem will completly
ignore the additional NICs on the network? And if so, is this a good thing
(can you get real ip addresses for your extra NICs) or a bad thing (will
your cable company notice or even care?).
Make sure that you check your terms of service with your cable company
so that your're not doing anything that is specifically not allowed by
hooking multiple NICs into the cable modem.
personally, I'd go with two NICs and a firewall/router configuration, but
that's just me. There are script kiddies on cable modem networks that prey
on poorly configured machines, just like any other segment of the
internet.
--Matt
--
Matt Galgoci
Job title: export title=`dd if=/dev/random bs=24 count=1`
echo $title
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