Okay... I've probably tracked this down.
The reason why no traffic from Site A reached Site C, is most probably due to the fact Site C only accepts packets from the network of Site B.
Masquerading is thus required. However, on Site B I have no chance (as far as I know) to change the source address of the traffic.
I've created an additional GRE tunnel (IPIP doesn't work) with an address assigned from the network of Site B on Site A. Masquerading and routing of the network traffic for Site C through the GRE tunnel did the trick.
But, please let me know if there is any better solution.
Best,
Martin.
The reason why no traffic from Site A reached Site C, is most probably due to the fact Site C only accepts packets from the network of Site B.
Masquerading is thus required. However, on Site B I have no chance (as far as I know) to change the source address of the traffic.
I've created an additional GRE tunnel (IPIP doesn't work) with an address assigned from the network of Site B on Site A. Masquerading and routing of the network traffic for Site C through the GRE tunnel did the trick.
But, please let me know if there is any better solution.
Best,
Martin.
Statistics: Posted by martink — Mon Feb 17, 2025 11:47 pm