[Serusers] no SRV query after rewriting R-URI?

alan chiu alanchiuyk at yahoo.com
Tue Jan 31 22:20:40 CET 2006


great, thanks for the clarification...so simply,
rewrite("host") would trigger SRV lookup.

--- Klaus Darilion <klaus.mailinglists at pernau.at>
wrote:

> Hi Alan!
> 
> That's the correct behaviour. Please read RFC 3263.
> If the URI contains a
> port, e.g. inside.acme.com:5060 there must not be an
> SRV lookup. Because
> the SRV lookup leads to a port, which is already
> defined.
> 
> regards
> klaus
> 
> On Tue, January 31, 2006 20:28, alan chiu said:
> > Server: Sip EXpress router (0.8.12
> (i86pc/solaris))
> >
> > when endpoint sends 18005551212 at sip.acme.com, SER
> > (without rewriting of R-URI, looks it up with SRV
> > ***************
> >
> > 386.656875 192.168.1.246 -> 10.100.0.111 SIP/SDP
> > Request: INVITE sip:18005551212 at sip.acme.com, with
> > session description
> > 386.657307 10.100.0.111 -> 192.168.1.246 SIP
> Status:
> > 100 trying -- your call is important to us
> >  88.811658 10.100.0.111 -> 192.168.1.11 DNS
> Standard
> > query SRV _sip._udp.sip.acme.com
> >  98.825208 192.168.1.11 -> 10.100.0.111 DNS
> Standard
> > query response, No such name
> >  98.825496 10.100.0.111 -> 192.168.1.11 DNS
> Standard
> > query A sip.acme.com
> > 108.845136 192.168.1.11 -> 10.100.0.111 DNS
> Standard
> > query response, No such name
> > 108.845468 10.100.0.111 -> 192.168.1.11 DNS
> Standard
> > query AAAA sip.acme.com
> > 118.865215 192.168.1.11 -> 10.100.0.111 DNS
> Standard
> > query response, No such name
> > 416.711408 10.100.0.111 -> 192.168.1.246 SIP
> Status:
> > 478 Unresolveable destination (478/TM)
> > 407.921364 192.168.1.246 -> 10.100.0.111 SIP
> Request:
> > ACK sip:18005551212 at sip.acme.com
> >
> >
>
***********************************************************************************
> >
> >
> > *************
> > after rewritehostport("inside.acme.com:5060"), SER
> > only does an A lookup
> > ***************
> >
> > 424.851557 192.168.1.246 -> 10.100.0.111 SIP/SDP
> > Request: INVITE sip:18005551212 at nat.foo.com, with
> > session descripti
> > on
> > 415.971953 10.100.0.111 -> 192.168.1.246 SIP
> Status:
> > 100 trying -- your call is important to us
> > 127.006508 10.100.0.111 -> 192.168.1.11 DNS
> Standard
> > query A inside.foo.com
> > 127.007557 192.168.1.11 -> 10.100.0.111 DNS
> Standard
> > query response A 192.168.1.211
> > 424.853464 10.100.0.111 -> 192.168.1.211 SIP/SDP
> > Request: INVITE
> sip:18005551212 at inside.foo.com:5060,
> > with session descriptio
> > n
> > 415.973466 10.100.0.111 -> 192.168.1.211 SIP/SDP
> > Request: INVITE
> sip:18005551212 at inside.foo.com:5060,
> > with session descriptio
> > n
> >
> >
>
******************************************************************
> >
> > How can I get SER to consistently do SRV lookup
> after
> > rewriting of R-URI?
> >
> > _______________________________________________
> > Serusers mailing list
> > serusers at lists.iptel.org
> > http://lists.iptel.org/mailman/listinfo/serusers
> >
> 
> 
> 




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