What's the purpose of having port range for the 'forward-to-ports' when using Port Forwarding feature?

Rufe Glick rufe.glick at gmail.com
Fri Oct 3 22:22:04 UTC 2014


Hello,

On the 'forwarder' machine with ip address of 10.0.0.1 I set up port forwarding using firewalld from of5001-5002/tcp range to ports 6001-6002 of 10.0.0.2 machine. Now when I connect to 10.0.0.1 from a third machine to ports 5001 or 5002 both connections go to port 6001 of the 10.0.0.2 machine; no connection ever goes to port 6002. So what's the purpose of having range if connections to all 'forward-from-ports' always go to the first port from the 'forward-to-ports' range? What am I missing?

Thank you,
Rufe
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