[SR-Users] bad transport for sips uri?

David Cunningham dcunningham at voisonics.com
Fri Feb 22 02:58:05 CET 2019


Hello all,

We're having an issue with Kamailio not processing an ACK and hope someone
can help. A PCAP shows that Kamailio is receiving the ACK, and we believe
these log messages are directly related to it:

Feb 21 10:54:01 hostname /sbin/kamailio[15854]: ERROR: tm [ut.h:279]:
uri2dst2(): ERROR: uri2dst: bad transport for sips uri: 1
Feb 21 10:54:01 hostname /sbin/kamailio[15854]: ERROR: tm [t_fwd.c:1777]:
t_forward_nonack(): ERROR: t_forward_nonack: failure to add branches
Feb 21 10:54:01 hostname /sbin/kamailio[15854]: ERROR: sl [sl_funcs.c:387]:
sl_reply_error(): ERROR: sl_reply_error used: Unresolvable destination
(478/SL)

The ACK is as follows. It's from telephone 111111 which is using TLS, which
Kamailio listens for on port 5061.
Does anyone know which URI has the bad transport as per the error above?
Might it be the From URI "sips:111111 at es8.example.com" because it doesn't
specify port 5061?
Thank you in advance.

Session Initiation Protocol (ACK)
    Request-Line: ACK sips:105 at 70.42.xx.xx:5070 SIP/2.0
    Message Header
        Via: SIP/2.0/TLS 50.78.yy.yy:5061;branch=z9hG4bK741961203
        Route: <sips:70.42.xx.xx:5061;transport=tls;r2=on;lr=on>
        Route: <sips:70.42.xx.xx;r2=on;lr=on>
        From: ES8 Test 102 <sips:111111 at es8.example.com
>;tag=Nf5GG!Orq!MSmGfeu66F03F2114df82b
        To: <sips:105 at es8.example.com:5061>;tag=as7a72b209
        Call-ID: 222222 at 50.78.yy.yy
        CSeq: 94679 ACK
        Contact: <sips:111111 at 50.78.yy.yy:5061;transport=tls>
        Max-Forwards: 70
        User-Agent: ewb2bua/15.3.0
        Content-Length: 0

-- 
David Cunningham, Voisonics Limited
http://voisonics.com/
USA: +1 213 221 1092
New Zealand: +64 (0)28 2558 3782
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