ipsec vpn bug found

[nevolex]

Hi

I just discovered a bug on the latest pfsense+

It does not establish the tunnel (phase 1) to the remote end, if the remove host using IPV6 DDNS (domain name)

It does work if the ipv6 of the host is directly specified. It also works fine if the remote host uses ipv4 ddns hostname or using the ipv4 address directly , however the tunnel cannot be established if ipv6 DDNS is used (a domain name resolves to a ipv6 address)

Important to notice that pfsense can ping the domain name fine (for ipv4 and ipv6) and does have a ipv6 gateway.

[nevolex]

https://redmine.pfsense.org/issues/12645