[strongSwan] Changing IKE port

[Tobias Brunner]

Hi Eric,

> Jul 13 16:43:41 ikev2 charon: 03[NET] received packet => 184 bytes @
> 0xafb379f0
> [ I removed the intermediate logs ]

That's unfortunate, because it would have been interesting to see
whether the client added a non-ESP marker to the packet or not (four
zero bytes).  If neither port is 500 charon expects that to be the case,
if not the packet is silently discarded after it has been read from the
socket.  As in:

> Jul 13 16:43:41 ikev2 charon: 03[NET] received packet: from
> 192.168.0.200[6701] to 192.168.0.22[6701]
> Jul 13 16:43:41 ikev2 charon: 03[NET] waiting for data on sockets

Regards,
Tobias