[Serusers] Cisco 7960 and 407 Proxy Auth Required

Martin Koenig martin.koenig at toplink-plannet.de
Wed Nov 17 12:24:14 CET 2004


Hello,

we have (again) problems with a Cisco 7960 SIP phone.

#
U 2004/11/17 13:18:55.664760 1.2.3.4:50520 -> 11.22.33.44:5060
INVITE sip:07216636445 at testbed.de SIP/2.0.
Via: SIP/2.0/UDP 1.2.3.4:5065;branch=z9hG4bK218ce466.
From: "Koenig"
<sip:koenig at testbed.de>;tag=0006283e0a68009a4d72450f-0d8cfd54.
To: <sip:07216636445 at testbed.de>.
Call-ID: 0006283e-0a680093-034392eb-37bfeedf at 1.2.3.4.
CSeq: 101 INVITE.
User-Agent: CSCO/7.
Contact: <sip:koenig at 1.2.3.4:5065>.
Expires: 180.
Content-Type: application/sdp.
Content-Length: 246.
Accept: application/sdp.
Remote-Party-ID: "Koenig"
<sip:koenig at 1.2.3.4>;party=calling;id-type=subscriber;privacy=off;screen=no.
.
(sdp stripped)

#
U 2004/11/17 13:18:55.665068 11.22.33.44:5060 -> 1.2.3.4:5065
SIP/2.0 407 Proxy Authentication Required.
Via: SIP/2.0/UDP 1.2.3.4:5065;branch=z9hG4bK218ce466.
From: "Koenig"
<sip:koenig at testbed.de>;tag=0006283e0a68009a4d72450f-0d8cfd54.
To: <sip:07216636445 at testbed.de>;tag=16ac3fc2258766c821c391b58b08db64.371f.
Call-ID: 0006283e-0a680093-034392eb-37bfeedf at 1.2.3.4.
CSeq: 101 INVITE.
Proxy-Authenticate: Digest realm="testbed.de",
nonce="419b42db55c1a65dac6b825b8c2f8bfa62539beb", qop="auth".
Server: Sip EXpress router (0.8.14-2 (i386/linux)).
Content-Length: 0.
Warning: 392 11.22.33.44:5060 "Noisy feedback tells:  pid=2660
req_src_ip=1.2.3.4 req_src_port=50520 in_uri=sip:07216636445 at testbed.de
out_uri=sip:07216636445 at testbed.de via_cnt==1".
.

#
U 2004/11/17 13:18:55.764578 1.2.3.4:51368 -> 11.22.33.44:5060
ACK sip:07216636445 at testbed.de SIP/2.0.
Via: SIP/2.0/UDP 1.2.3.4:5060;branch=z9hG4bK218ce466.
From: "Koenig"
<sip:koenig at testbed.de>;tag=0006283e0a68009a4d72450f-0d8cfd54.
To: <sip:07216636445 at testbed.de>;tag=16ac3fc2258766c821c391b58b08db64.371f.
Call-ID: 0006283e-0a680093-034392eb-37bfeedf at 1.2.3.4.
CSeq: 101 ACK.
Content-Length: 0.
.

#
U 2004/11/17 13:18:55.764915 11.22.33.44:5060 -> 11.22.33.55:5060
ACK sip:+497216636445 at 213.218.10.130:5060 SIP/2.0.
Max-Forwards: 10.
Via: SIP/2.0/UDP 11.22.33.44;branch=0.
Via: SIP/2.0/UDP 1.2.3.4:5060;branch=z9hG4bK218ce466.
From: "Koenig"
<sip:koenig at testbed.de>;tag=0006283e0a68009a4d72450f-0d8cfd54.
To: <sip:07216636445 at testbed.de>;tag=16ac3fc2258766c821c391b58b08db64.371f.
Call-ID: 0006283e-0a680093-034392eb-37bfeedf at 1.2.3.4.
CSeq: 101 ACK.
Content-Length: 0.
.

As you can see, the ACK for the 407 gets forwarded by SER. It does not match
the previous transaction. This should not be the case. Is there anything we
can do about this, except flying to munich and beat on cisco?

Best regards,
Martin




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