Multiple port-fwd on same port based on src IP
Hi,
I wonder if I can use multiple port forwarding rules to the same IP/Port based on the src IP and forwarding to different internal IPs
It should be something like this:
iptables -t nat -A PREROUTING -p tcp -s CLIENT1_IP -d INET_IP --dport 1234 -j DNAT --to 192.168.1.1:1234 iptables -t nat -A PREROUTING -p tcp -s CLIENT2_IP -d INET_IP --dport 1234 -j DNAT --to 192.168.1.2:1234 iptables -t nat -A PREROUTING -p tcp -s CLIENT3_IP -d INET_IP --dport 1234 -j DNAT --to 192.168.1.3:1234
...
Will it work? Or should I configure some sort of tcp proxy.?
Thanks
Oliver
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Oliver Schulze L. Get my e-mail after a captcha test in: http://tinymailto.com/oliver
Quoted 14 lines
Hi,
I wonder if I can use multiple port forwarding rules to the same IP/Port based on the src IP and forwarding to different internal IPsIt should be something like this:
iptables -t nat -A PREROUTING -p tcp -sCLIENT1_IP-dINET_IP--dport 1234 -j DNAT --to 192.168.1.1:1234
iptables -t nat -A PREROUTING -p tcp -sCLIENT2_IP-dINET_IP--dport 1234 -j DNAT --to 192.168.1.2:1234
iptables -t nat -A PREROUTING -p tcp -sCLIENT3_IP-dINET_IP--dport 1234 -j DNAT --to 192.168.1.3:1234
...
Quoted 1 line
Will it work? Or should I configure some sort of tcp proxy.?
I'm not sure why you're using "-d INET_IP" (this box has multiple INET_IP's?), but IMO this would work (if your FORWARD chain is properly setup).
Gr,
Rob
Quoted 4 lines · Rob Sterenborg
I'm not sure why you're using "-d
INET_IP" (this box has multiple INET_IP's?), but IMO this would work (if your FORWARD chain is properly setup).
Hi Rob,
the box has only 2 IPs, 1 Public, 1 Private.
Thanks for the comments, will try it.
Oliver
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Oliver Schulze L. Get my e-mail after a captcha test in: http://tinymailto.com/oliver