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How to do port fowarding through a GRE tunnel?
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How to do port fowarding through a GRE tunnel?

bob1bob1 Member

I have a DDoS protected IP at OVH, let's say its called server A and has the ip 1.2.3.4.

I have a non-protected Server B with the ip 3.4.5.6.

I setup a GRE tunnel between them.

What iptables or ip route rules do I need so I can open up a UDP server on Server B and have it accept and reply from 1.2.3.4 at port 5555 on Server A?

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