Re: Firewall or router
The laptop needs the following settings:
- Gateway - your Debian box (192.168.2.1)
- a route to the 192.168.2.x network
The Debian box needs:
- forwarding enabled
- Gateway - your FreeBSD pc (192.168.1.1)
- a route to the 192.168.2.x network
- a route to the 192.168.1.x network
The FreeBSD box will probably have to be configured to forward packets
from 192.168.2.x as well as 192.168.1.x (unless you configured it to NAT
to 192.168.x.x in the first place). I don't know much about FreeBSD, but
to do this in Linux I would add an extra ipchains (ipfwadm for 2.0.x
kernel) rule to MASQ to that network, as well as the original one.
Matthew
Arcady Genkin wrote:
>
> Hi. I've just got a laptop computer. I already have a two-computer
> network running with a FreeBSD box doing NAT and firewalling, and a
> Debian box behind it. I need to obtain means of connecting my notebook
> to the 'net.
>
> Because I'm too cheap to buy a hub, and also because I have a bunch of
> networking cards lying around (that don't match), I put an extra NIC
> into the Debian box and connected the laptop to it. The network works
> fine. Laptop has IP 192.168.2.2, Debian box has IPs 192.168.2.1 (to
> the laptop), and 192.168.1.2 (to the firewall). The FreeBSD box has an
> IP of 192.168.1.1 on the inside, and a real IP on the outside.
>
> My question is: what do I want to do with my Debian box so that the
> laptop could talk to the 'net? As far as I understand, I just need to
> configure it a router (to route all traffict from 192.168.2.2 through
> 192.168.1.1), correct?
>
> Also, will I need to modify anything on my firewall? Do I need to add
> a routing entry for 192.168.2 network? I'm afraid it would try to look
> for it in the outside...
>
> FWIW, the laptop runs Slackware.
>
> Thanks for any comments, suggestions, etc.!
> --
> Arcady Genkin http://www.thpoon.com
> Nostalgia isn't what it used to be.
>
> --
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