Allow IPIP from any address in network

[Cablenut9]

I need to make an IPIP tunnel where it can receive packets from any address in a particular network, say 10.0.0.0/8. Is there a way to do this?

[Cablenut9]

Bump

[Zaesch]

What are you trying to achive?

The only “solution” is, to configure a IPIP tunnel interface for each IP address in your network. I doubt, that it is possible to have 256256256=16.777.216 IPIP tunnel interfaces `(o.0)´

[Cablenut9]

I guess I would have to do what you said, but in my case about 50 of them.

[xvo]

Probably it would be better to create a script that will look for incoming GRE packets and create an IPIP tunnel for that address, and another one that will remove unused tunnels once in a while.

[nostromog]

I need to make an IPIP tunnel where it can receive packets from any address in a particular network, say 10.0.0.0/8. Is there a way to do this?

wireguard (7 beta) does something similar to what you want provided that what you want is that the tunnel “adapts” (as in roams) to changing input address, and not a multipoint-point tunnel where I’m not sure what you would do with the return traffic.

[nostromog]

I need to make an IPIP tunnel where it can receive packets from any address in a particular network, say 10.0.0.0/8. Is there a way to do this?

wireguard (7 beta) does something similar to what you want provided that what you want is that the tunnel “adapts” (as in roams) to changing input address, and not a multipoint-point tunnel where I’m not sure what you would do with the return traffic.

Edit: s/wireshark/wireguard/ sorry my dyslexia