[strongSwan] Strongswan+Android+Xauth

[Tobias Brunner]

Hi Ingmar,

> after my Android-VPN to Strongswan worked like a charm, I've upgrade
> to strongswan 4.5.2. After that the the Android-Connection stopped
> working.

Perhaps you figured this out yourself already, but for the record:  With
4.5.0 the default value for the keyexchange option in ipsec.conf changed
from ikev1 to ikev2.  This means that you have to explicitly set
keyexchange=ikev1, otherwise your connection will not be known to pluto.

Regards,
Tobias