[strongSwan] how to tell charon-nm to use 500/udp and 4500/udp

[Harald Dunkel]

Hi folks,

is there some way to tell charon-nm to use 4500/udp for the outgoing
connection, instead of an arbitrary port, if available? Same for
500/udp.

I assume a problem on the AVM Fritzbox in this context. 500/udp and
4500/udp at both ends appears to be more reliable. However, I am not
sure at all where the temporary port comes from. I have just very
restricted access to the peer, since VPN is not working yet.


Regards

Harri