[Techtalk] iptables NAT forwarding...

Julie jockgrrl at austin.rr.com
Tue May 28 09:46:45 EST 2002


Walt wrote:
> 
> I'm kind of lost as to why this isn't working..
> 
> All I'm trying to do is forward a connection
> to port 2346 on my server's external iface to
> an internal computer on the same port.
> 
> My iptables command is simply this:
> iptables -A INPUT -p udp --dport 2346 -d [EXT_IP] -j ACCEPT
> iptables -A PREROUTING -t nat -p udp -i ppp0 --dport 2346 -j DNAT --to
> 10.0.0.9:2346
> 
> But the connection cannot be established and
> when I 'nc -u -v -z localhost 2346' it tells me
> connection refused.
> 
> Do I need to add a rule to my INPUT chain to
> allow connections to that port?
> 
> Any input would be appreciated!

Based on what I learned a few weeks back, the answer is "Yes".
-- 
Julianne Frances Haugh             Life is either a daring adventure
jockgrrl at austin.rr.com                 or nothing at all.
					    -- Helen Keller



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