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Re: More IP Forwarding & Routing Confusion



You must type echo 1 > /proc/sys/net/ipv4/ip_forward
For you it could be ipv6, but thats the string on my 7.x server.
Also enable masquerade in your iptables firewall and open for access from your eth0 card.



----- Original Message -----
From: jg <jg573 yahoo com>
Date: Thu, 25 Mar 2004 09:54:55 -0800 (PST)
To: redhat-list redhat com
Subject: More IP Forwarding & Routing Confusion

> I have 2 systems (1 Xp, 1 Linux) connected to a hub.
> The hub the connects to eth0 (internal) on a Redhat9
> box.
> eth1 of the Redhat 9 box goes to external network.
> 
> I have turned on IP Forwarding on the Redhat 9 box.
> 
> Do I have to add route statements (on the Redhat9 box
> with Ip Forwarding) so that the traffic into eth0 gets
> sent out eth1 ?
> 
> If I try to ping hosts on the external net from the
> systems behind eth0, I get ICMP "Destination Host
> Unreachable" errors from the eth0 IP address.
> 
> 
> The 2 systems behind also cannot ping eth1 of the
> Redhat 9 box.
> 
> Make sense?
> 
> 
> 
> 
> 
> 
> 
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