[Serusers] DNS SRV lookup issue - sr-users

23 Feb 2005


      Hi All,
I am facing problem to get SER to do a SRV lookup. I have the
following scenario…
Step 1:
SIP UA1 registers with SER (testdomain.com) with contact address
user@testdomain.com
SIP UA2 registers with SER (testdomain.com) with contact address
user@testdomain.com
Step 2:
SIP UA3 calls user@testdomain.com. This results in error "478
Unresolveable destination"
Problem
I would expect SER to do a DNS SRV lookup on testdomain.com and get
sip1.testdomain.com and sip2.testdomain.com. Unfortunately, SER only
does A and AAAA query. (verified via ethereal) and does not do SRV
lookup. How can I make it do SRV lookup ? I am using the default
ser.cfg file.
FYI: using host -t srv _sip._udp.testdomain.com gives me the correct
SRV response.
DNS entries
_sip._udp.testdomain.com.                     3600     IN         SRV 
   0          1          5060     sip1.testdomain.com.
_sip._udp.testdomain.com.                     3600     IN         SRV 
   0          1          5060     sip2.testdomain.com.
Any pointers would be really appreciated.
Thanks,
Chetan