[SR-Users] 4.4 topos ignoring Record-Route?

Daniel Tryba d.tryba at pocos.nl
Thu Sep 8 18:07:16 CEST 2016

On Tue, Sep 06, 2016 at 12:53:35PM +0200, Daniel-Constantin Mierla wrote:
> > -Route to the callee has trailing nulls (starting from the first ACK to
> > the callee (packet 7 in pcap))
> > [...]
> Couldn't spot the real reason to have those zeors in the route value, I
> added some trimming before inserting the header to see if it's from
> there. Can you give another try with latest master?

Zeros are fixed, also I'm not seeing any broken Via anymore (so far in 4
test calls > 30m).

But I found a new problem instead. In attached pcap, the caller hangsup.
It sends a BYE (packet 152) to sip:atpsh-57d1682c-5030-8 at
But that isn't routed to the correct destination. This only happens
after some time (after session timers kick in), a short call (<45s) is
disconnected properly.

BYE sip:;r2=on;lr SIP/2.0
Via: SIP/2.0/UDP;branch=z9hG4bK2b6e.361405330d3447114a61eeb9ea603166.0
Via: SIP/2.0/UDP;branch=z9hG4bK2b6e.4b6ac03027a65b62fbc89dbba78d0f1a.0
Max-Forwards: 68
From: <sip:+31402938662 at>;tag=as2305c39a
To: <sip:+31407110385 at sipcluster2.pocos.nl>;tag=as2b8ad5c1
Call-ID: 5039a1370a53ec320a3b35e871e34441 at
CSeq: 103 BYE
Reason: Q.850;cause=16
Content-Length: 0
Contact: <sip:btpsh-57d1682c-5030-7 at>

The RURI is broken, the Contact is not rewritten to the callees original
Contact but topos variant, and the Vias are reconstructed.
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