Re: Debian as a router.
Apparently, _Cordazer Calvin Broadus_, on 05/05/04 19:10,typed:
Greetings,
Instead of buying a router I thought that I would
hook up my PC that has two NICs as a router.
Basically what I have below is a rough illustration of
what this looks like. I am trying to sift through the
networking howtos from www.tldp.org but that is slow
going. Has somone set this up? Any good
walkthroughs?
[ISP]----[Cable MODEM]-----[My PC eth0]
[My PC eth1]----------[My iMac]
I am running:
[ISP]--[ADSL modem]-->[PC-R eth0][PC-R eth0]--Sw--->[PC Win98]
|
---->[PC Sid]
(where Sw = switch, PC-R = router PC running Sarge)
Once you have the two NICs recognized in your router computer, you are
ready to do NAT and masquarading.
It is vital that you have a firewall script set up on your router.
Iptables is the way to go. There are numerous iptables how-tos on the
internet. E.g.:
http://newbiedoc.sourceforge.net/networking/homegateway.html
http://www.yolinux.com/TUTORIALS/LinuxTutorialIptablesNetworkGateway.html
And to let the computers on your internal home network use internet
connection, you must turn masquarading on in your router, as mentioned
in the above pages. (The only problme I see is if you do not have
iptables modules compiled in your kernel, in which case you need to
compile your kernel with netfilter and IPtables support(Networking
options).)
Go through those pages and feel free to ask if you have any questions.
Also, main files you will want to be aware about are:
/etc/network/interfaces/
/etc/resolv.conf
/etc/hosts
and your firewall script(s)
GL,
->HS
--
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