Port forwarding to specific switch egress port

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fractal5
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Joined: 11 Jan 2014
Posts: 23

PostPosted: Mon Dec 21, 2015 0:20    Post subject: Port forwarding to specific switch egress port Reply with quote
I'm not sure if this is considered "advanced" networking, but it is at least a little more complicated than the plain and simple port forwarding.

I want all incoming Internet traffic on port 1000 (TCP) forwarded to 10.0.0.10:1000 (TCP). However, I want to limit this to a specific egress port on the built-in switch in the wireless router.

This is for security reasons. I don't want a scenario where for whatever reason the IP for the computers on the network have changed, and the traffic gets sent to the wrong computer.

Can this be done with dd-wrt? Does it depend on the device dd-wrt is installed on?

It seems this should be quite similar to the iptables command -o, --out-interface

But I don't have an interface per port.

I only have: ath0 ath1 br0 eth0 vlan1 vlan2, this is for a TPLINK TL-WDR3600.
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