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ip:2222 forward to not working

i'm having a problem ssh'ing to an internal box from the external device.

this doesn't seem to work:
iptables -t nat -I PREROUTING -d $ip -p tcp --dport 2222 -j DNAT --to

i figured that alone will work becuase i run this for vnc and it works perfectly:
iptables -t nat -A PREROUTING -p tcp -i eth0 -d $ip --dport
5900 -j DNAT --to-destination
iptables -t nat -A PREROUTING -p tcp -i eth0 -d $ip --dport
5800 -j DNAT --to-destination

when i run the first one for forwarding $ip:2222 to it fails at the forward chain. so i did the following just to be safe:
iptables -I FORWARD -j ACCEPT

if you need more info, let me know.

Joe Ellis

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