[wplug] IP forwarding with iptables?

Tim Lesher tim at lesher.ws
Wed Feb 11 13:00:54 EST 2004


I'm trying to forward inbound udp traffic to a privileged port, to an
unprivileged port on the same box.  The purpose is to let a non-suid
daemon handle the traffic.  The environment is Debian Sarge, kernel
version 2.4.22.

I've turned on ip_forward in /proc/..., and I've tried the following
iptables commands:

iptables -t nat -A PREROUTING -p udp --dport 142 -j DNAT --to :8142

But I'm still getting packets on port 142, not 8142.  Any suggestions?

-- 
Tim Lesher <tim at lesher.ws>
http://www.lesher.ws

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