strongSwan

Trying to force charon-nm to use IPv6 I get a lookup failure very early:

Mar 12 08:27:10 ppcl001 charon-nm: 10[CFG] received initiate for NetworkManager connection mygate IKEv2
Mar 12 08:27:10 ppcl001 charon-nm: 10[CFG] using CA certificate, gateway identity 'mygate6.example.com'
Mar 12 08:27:10 ppcl001 charon-nm: 19[LIB] resolving 'mygate6.example.com' failed: Name or service not known
Mar 12 08:27:10 ppcl001 charon-nm: 10[IKE] unable to resolve mygate6.example.com, initiate aborted
Mar 12 08:27:10 ppcl001 charon-nm: 10[MGR] tried to checkin and delete nonexisting IKE_SA

Point is, the peer (mygate6.example.com) doesn't have an A record in DNS, just AAAA. If I set the gateway to "mygate4.example.com" with a regular A record, then there is no such problem.