[ale] linux gateway...? simple question?

[debian4tux at telocity.com (Mark Hurley)]

Ahhh....you did mention your kernel.  You need to configure
masquerading on your linux box.  And your 2.4 kernel uses iptables.

You can go to linuxdoc.org...plenty of docs there.

This *may* work for you...(see if I can pull this out of the bag'o
tricks)


iptables -t nat -A POSTROUTING -s 192.168.0.0/24 -o eth1 -j MASQUERADE


If it doesn't work...you have a starting point.  Btw...here's another
link on iptables:

http://www.linuxguruz.org/iptables/

Good Luck!

Mark Hurley


On Mon, Nov 12, 2001 at 12:16:24AM -0500, Christopher Bergeron wrote:
> Hi guys, I'm having a bit of a prob. I'm hoping is easy to resolve.  I
> finally got my cablemodem on Saturday (w00 h00!).  Well, I can get out fine
> with my linux box.  I'm trying to set my girlfriends windos machine up to
> get internet via my linux box/cablemodem.
> 
> Background:
> a) linux box gets out(internet) fine on eth1; DHCP, gets DNS from provider,
> etc.
> b) win box is connected to linux box on eth0 (via hub)
> c) win box has linux box set as gateway machine.
> d) win box has static ip assigned to it.
> e) win box has DNS set same as linux box's DNS
> f) IP_FORWARD = YES is set in /etc/sysconfig/network on linux box
> g) win box can ping linux box(eth0) fine.
> h) win box CAN'T get internet via hostname _or_ IP addy.
> i) default route on linux box is ISP/CABLEMODEM;
> 
> what am I doing wrong?  Do i need a route for the 192.168 (internal) net to
> send packets over to the 24.88.(external) interface?  I thought forwarding
> would did this...  My kernel is 2.4;
> 
> My routing table has:
>   my external network 	(24.88.22.0) 	eth1
>   my internal network 	(192.168.0.0) 	eth0
>   my loopback 		(127.0.0.0) 	lo
>   my default gw 		(24.88.22.1) 	eth1
> 
> If anyone needs any more info, I can gladly provide it.  I'm at my wits end
> on this, and I fear that I've done something stupid that I just can't see.
> 
> If anyone can provide me with any leads, I would greatly appreciate it!!!
> 
> TIA,
> CB
> 
> 
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