Current stable release support using only one (first by ordering) NAPTR DNS record. I didn't find any ideas how to configure possibility for use all supported NAPTR / SRV records. This pull request resolve this issue.

General issue: PreConditions: # host -t naptr voip.somehost.com voip.somehost.com has NAPTR record 1 0 "S" "SIPS+D2T" "" _sips._tcp.voip.somehost.com. voip.somehost.com has NAPTR record 2 0 "S" "SIP+D2U" "" _sip._udp.voip.somehost.com.

# host -t srv _sips._tcp.voip.somehost.com _sips._tcp.voip.somehost.com has SRV record 1 1 443 voip.somehost.com. _sips._tcp.voip.somehost.com has SRV record 2 1 5061 192.168.1.50. _sips._tcp.voip.somehost.com has SRV record 3 1 5061 10.100.1.20.

# host -t srv _sip._udp.voip.somehost.com _sip._udp.voip.somehost.com has SRV record 1 1 5060 voip.somehost.com. _sip._udp.voip.somehost.com has SRV record 2 1 5060 192.168.1.50. _sip._udp.voip.somehost.com has SRV record 3 1 5060 10.100.1.20.

In my configuration of kamailio I don't see trying to use second by priority NAPTR record: voip.somehost.com has NAPTR record 2 0 "S" "SIP+D2U" "" _sip._udp.voip.somehost.com.

Kindly ask to share your ideas regarding faced issue and my pull request. Thank you.

You can view, comment on, or merge this pull request online at:

https://github.com/kamailio/kamailio/pull/2290

-- Commit Summary --

* Add using all NAPTR records

-- File Changes --

M src/core/dns_cache.c (86) M src/core/resolve.c (1) M src/core/resolve.h (1)

-- Patch Links --

https://github.com/kamailio/kamailio/pull/2290.patch https://github.com/kamailio/kamailio/pull/2290.diff