Hi Klaus:

Thanks for your answer. After I add dns_try_ipv6=yes in openser.cfg, my problem has been solved.

But I wonder why the default value of dns_try_ipv6 is "yes" in version 1.2.x, but "no" in version 1.3.x?

For my personal opinion, setting default value to "yes" is better than "no".

Best Regards, Fang

Hi!

Openser does support AAAA, when enabled: http://www.openser.org/dokuwiki/doku.php/core-cookbook:1.3.x#dns_try_ipv6

regards klaus

Fangyu Ling wrote:

...

In my DNS server, there are only AAAA records for any nodes. My test topology is as following:

-----+---------+--------+------ | | | siphone1 openser siphone2 (UA1) (UA2)

For the testing procedure, I only use domain name of the URI. When UA1 invited UA2 via openser, openser only ask A record of UA2. There are no A records in my DNS server! So, openser then replied 476 Unresolvable Destination message to UA1.

In normal conditon, if there were no such name of A record, it should ask AAAA record instead. But why OPENSER only ask A record?

Best Regards, Fang