Probably OPENSER-ONE does not recognize the BYE as targeted to itself
(due to misconfiguration of listen|alias parameters) and that's why it
keeps on sending to itself the message..
It's like OPENSER-ONE checks the Req-URI|Route domainname|IP and
says..hey that's not for me, let's forward it to the next route..which
happens to be itself....and this happens until Max-Forwards reaches
the lower limit...

Try to add
alias=OPENSER-ONE.example.com:5060

in your config file and see what happens..

Samuel.


2006/9/28, Mark Kent <[EMAIL PROTECTED]>:
I wonder if anyone on this list is open to a thought exercise?
I'm trying to put together a cogent message about this,
but in the meantime:

I've got a situation where my openser box seems to route stuff to itself
and it loops around and around until I get the classic "Too Many Hops" error.

This seems to happen most often on BYE, although I've seen an ACK do it too.
Here is a small ngrep snippet, after

PHONE has called OPENSER-ONE who statelessly relays to OPENSER-TWO
who t_relays to PSTNGW, and then the pstn user hangs-up:

 U  23:03:53.254382 PSTNGW:5060 -> OPENSER-TWO:5060
 BYE sip:[EMAIL PROTECTED]:5060;user=phone SIP/2.0
 Call-ID: [EMAIL PROTECTED]
 From: <sip:[EMAIL PROTECTED]:5060>;tag=26674
 To: "Joe User" <sip:[EMAIL PROTECTED]>;tag=thetag
 Content-Length: 0
 CSeq: 1 BYE
 Via: SIP/2.0/UDP PSTNGW:5060;branch=thebranch
 Route: <sip:[EMAIL PROTECTED]:5060>
 Max-Forwards: 70

 #
 U  23:03:53.255013 OPENSER-TWO:5060 -> OPENSER-ONE:5060
 BYE sip:[EMAIL PROTECTED]:5060 SIP/2.0
 Record-Route: <sip:[EMAIL PROTECTED];lr=on;ftag=26674>
 Call-ID: [EMAIL PROTECTED]
 From: <sip:[EMAIL PROTECTED]:5060>;tag=26674
 To: "Joe User" <sip:[EMAIL PROTECTED]>;tag=thetag
 Content-Length: 0
 CSeq: 1 BYE
 Via: SIP/2.0/UDP OPENSER-TWO;branch=otherbranch.0
 Via: SIP/2.0/UDP PSTNGW:5060;branch=thebranch
 Max-Forwards: 69
 Route: <sip:[EMAIL PROTECTED]:5060;user=phone>

Right here OPENSER-ONE freaks out, and the delay causes
OPENSER-TWO to re-transmit:

 #
 U  23:03:53.611227 OPENSER-TWO:5060 -> OPENSER-ONE:5060
 BYE sip:[EMAIL PROTECTED]:5060 SIP/2.0
 Record-Route: <sip:[EMAIL PROTECTED];lr=on;ftag=26674>
 Call-ID: [EMAIL PROTECTED]
 From: <sip:[EMAIL PROTECTED]:5060>;tag=26674
 To: "Joe User" <sip:[EMAIL PROTECTED]>;tag=thetag
 Content-Length: 0
 CSeq: 1 BYE
 Via: SIP/2.0/UDP OPENSER-TWO;branch=otherbranch.0
 Via: SIP/2.0/UDP PSTNGW:5060;branch=thebranch
 Max-Forwards: 69
 Route: <sip:[EMAIL PROTECTED]:5060;user=phone>

OK, so who on this list is good enough to be able to suggest plausible
theories about what my openser.cfg flaw is?  If you don't want to
speculate openly on the list then please send me a direct email.

Thanks,
-mark


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