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Old 08-23-2003, 10:37 AM   #1
Amir
LQ Newbie
 
Registered: May 2003
Distribution: Red Hat 9
Posts: 22

Rep: Reputation: 15
RedHat 9 Routing Help


I have a linux pc with 2 network cards in it. They both work, and i would like to share a cable internet connection with my other XP computer. This is my network:

cable internet -> (eth0) Linux machine (eth1)- > XP machine

now, i'm able to ping my xp machine no prob, and i have internet on my linux machine too. I used the "medium" firewall config when i first installed red hat 9. And I modified my iptables like this:

iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
iptables -A FORWARD -s 10.0.0.0/24 -j ACCEPT
iptables -A FORWARD -d 10.0.0.0/24 -j ACCEPT
iptables -A FORWARD -s ! 10.0.0.0/24 -j DROP

I got this config from a redhat 8 book. I saved this config and restarted but i still don't have internet on my xp machine yet.

The ip addresses of my machines are: 10.0.0.10 (linux), 10.0.0.2 (xp)

What should i do? Am i missing something?

Any help would be appreciated.

Last edited by Amir; 08-23-2003 at 10:39 AM.
 
Old 08-23-2003, 10:51 AM   #2
david_ross
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Registered: Mar 2003
Location: Scotland
Distribution: Slackware, RedHat, Debian
Posts: 12,047

Rep: Reputation: 66
Try enabling packet forwarding:
echo 1 > /proc/sys/net/ipv4/ip_forward
echo 1 > /proc/sys/net/ipv4/ip_dynaddr

If that doesn't work then try flushig nyour iptables and load your rules again:
iptables -F
iptables -F -t nat
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
iptables -A FORWARD -s 10.0.0.0/24 -j ACCEPT
iptables -A FORWARD -d 10.0.0.0/24 -j ACCEPT
iptables -A FORWARD -s ! 10.0.0.0/24 -j DROP
 
  


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