Re: LAN to Internet gateway problem
Stephan Hachinger wrote (on 25 Feb 2002 at 17:36):
> machine I want to configure as router is 192.168.90.95 (stephan).
> Stephan has a second network card inside (192.168.37.95) and
> connects to the internet over this card and dsl (pppoE). Now,
> this is what I've tried:
>
> -Modifying the route table on pentiumdioxid (see attached route
> output)-Installing dnrd, a dns forwarder, on stephan (dns
> resulution seems to work without problems now)-setting ip_forward
> to "yes" in /etc/network/options on stephan
>
> I've also attached hosts.allow and hosts.deny.
Been up for over four hours and no answers yet? Well then:
I don't see anything in the above about any NAT, which you need
if those private-IP hosts are going to talk to the Internet.
You didn't say what kernel version you're running, so read the
documentation on either ipchains or iptables--or go straight to
the IP-masquerading Howto.
> The problem is, when I try to ping www.debian.org from
> pentiumdioxid, pentiumdioxid gets the ip adress of debian.org
> (198.186.203.20) but it doesn't get any packages back.
Well, you have a name server on your gateway machine, so that's
where you're getting the IP address from. The internal computer
apparently made no contact with the Internet at all.
> P.S.: Into which file can I put the routing table modifications
> so that the modified routing table is automatically loadad at
> startup?
If there's an /etc/init.d/ppp*, that might be an appropriate
place. If not, there's always /etc/init.d/networking, or copy
that to a new name, edit it a lot, and read man update-rc.d
about the order of execution of the init scripts and see how to
set your routes after the interfaces are up.
T.
--
-- Tony Crawford
-- tc@crawfords.de
-- +49-3341-30 99 99
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