[SR-Users] NAPTR priorities doesn't seem to work properly

[Iñaki Baz Castillo]

2011/6/10 Klaus Darilion <klaus.mailinglists at pernau.at>:
> Kamailio performs NAPTR lookups, but chooses UDP. I do not know why.

You are fully right. I've captured DNS traffic and wireshark clearly
shows a NAPTR record. And indeed kamailio prefers SIP over UDP with no
reason (it should prefer TCP as my kamailio does not speak TLS):

$ host -t naptr oversip.net
oversip.net has NAPTR record 5 50 "S" "SIPS+D2T" "" _sips._tcp.oversip.net.
oversip.net has NAPTR record 10 50 "S" "SIP+D2T" "" _sip._tcp.oversip.net.
oversip.net has NAPTR record 20 50 "S" "SIP+D2U" "" _sip._udp.oversip.net.
oversip.net has NAPTR record 40 50 "S" "SIP+D2S" "" _sip._sctp.oversip.net.
oversip.net has NAPTR record 50 50 "S" "SIPS+D2S" "" _sips._sctp.oversip.net.


Maybe kamailio is taking the "order" field of the NAPTR incorrectly
and gives priority with higher values? I will check it ASAP.

Thanks a lot Klaus.

-- 
Iñaki Baz Castillo
<ibc at aliax.net>