On 23/03/2020 18:51, Joshua C. Colp wrote:
On Mon, Mar 23, 2020 at 2:45 PM John Hughes <[email protected] <mailto:[email protected]>> wrote:


    Why is asterisk giving an error 500? I can find no reason, there
    is nothing in any log.


The sequence number is from the past. The first SUBSCRIBE is sequence number 22 (check the CSeq header). The second is 20. The third is 21. It appears as though this is from the past, so it receives a 500.

Ok, I've had some back and forth with the linphone developers and they contend that although the sequence number on the 2nd and 3rd SUBSCRIBE messages start a new sequence this is legal as it is a new conversation -- the "tag=" on the From has changed.

Are they right?  (Notice that the tag= from asterisk also changes).

<--- SIP read from UDP:10.27.128.3:5060 <http://10.27.128.3:5060> --->
SUBSCRIBE sip:[email protected]:5060 SIP/2.0
Via: SIP/2.0/UDP 10.27.128.3:5060;branch=z9hG4bK.NYP-ux0Zx;rport
From: <sip:[email protected]>;*tag=iGH81k5xf*
To: <sip:[email protected]>;tag=as3c7de68c
CSeq: 22 SUBSCRIBE
Call-ID: SQOclJgm4O
Max-Forwards: 70
Supported: replaces, outbound
Event: presence
Expires: 600
Accept: application/pidf+xml
Contact: <sip:[email protected];transport=udp>;+sip.instance="<urn:uuid:abcdf51a-82e0-49b9-a8ab-2461011f25ec>"
User-Agent: Linphone/3.12.0 (belle-sip/1.6.3)
Authorization: Digest realm="asterisk", nonce="188b095b", algorithm=MD5, username="john", uri="sip:[email protected]:5060", response="bdbc7cbac4453fd643050bf28996a68e"

<------------->
--- (14 headers 0 lines) ---
Found peer 'john' for 'john' from 10.27.128.3:5060 <http://10.27.128.3:5060>

<--- Transmitting (no NAT) to 10.27.128.3:5060 <http://10.27.128.3:5060> --->
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 10.27.128.3:5060;branch=z9hG4bK.NYP-ux0Zx;received=10.27.128.3;rport=5060
From: <sip:[email protected]>;*tag=iGH81k5xf*
To: <sip:[email protected]>;tag=as3c7de68c
Call-ID: SQOclJgm4O
CSeq: 22 SUBSCRIBE
Server: Asterisk PBX 13.14.1~dfsg-2+deb9u4
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
WWW-Authenticate: Digest algorithm=MD5, realm="asterisk", nonce="3144c0a9", stale=true
Content-Length: 0


<------------>
Scheduling destruction of SIP dialog 'SQOclJgm4O' in 32000 ms (Method: SUBSCRIBE)

<--- SIP read from UDP:10.27.128.3:5060 <http://10.27.128.3:5060> --->
SUBSCRIBE sip:[email protected] SIP/2.0
Via: SIP/2.0/UDP 10.27.128.3:5060;branch=z9hG4bK.oxfLJBaRw;rport
From: <sip:[email protected]>;*tag=c3Wvuu2XH <===== new conversation*
To: sip:[email protected]
CSeq: *20 SUBSCRIBE <=== sequence restarts*
Call-ID: SQOclJgm4O
Max-Forwards: 70
Supported: replaces, outbound
Event: presence
Expires: 600
Accept: application/pidf+xml
Contact: <sip:[email protected];transport=udp>;+sip.instance="<urn:uuid:abcdf51a-82e0-49b9-a8ab-2461011f25ec>"
User-Agent: Linphone/3.12.0 (belle-sip/1.6.3)

<------------->
--- (13 headers 0 lines) ---
Sending to 10.27.128.3:5060 <http://10.27.128.3:5060> (no NAT)
Creating new subscription
Sending to 10.27.128.3:5060 <http://10.27.128.3:5060> (no NAT)
sip_route_dump: route/path hop: <sip:[email protected];transport=udp>
Found peer 'john' for 'john' from 10.27.128.3:5060 <http://10.27.128.3:5060>

<--- Transmitting (no NAT) to 10.27.128.3:5060 <http://10.27.128.3:5060> --->
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 10.27.128.3:5060;branch=z9hG4bK.oxfLJBaRw;received=10.27.128.3;rport=5060
From: <sip:[email protected]>;tag=c3Wvuu2XH
To: sip:[email protected];tag=as007ffc64
Call-ID: SQOclJgm4O
CSeq: 20 SUBSCRIBE
Server: Asterisk PBX 13.14.1~dfsg-2+deb9u4
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
WWW-Authenticate: Digest algorithm=MD5, realm="asterisk", nonce="4224acfb"
Content-Length: 0


<------------>
Scheduling destruction of SIP dialog 'SQOclJgm4O' in 32000 ms (Method: SUBSCRIBE)

<--- SIP read from UDP:10.27.128.3:5060 <http://10.27.128.3:5060> --->
SUBSCRIBE sip:[email protected] SIP/2.0
Via: SIP/2.0/UDP 10.27.128.3:5060;branch=z9hG4bK.RNv418~xv;rport
From: <sip:[email protected]>;tag=c3Wvuu2XH
To: sip:[email protected]
CSeq: 21 SUBSCRIBE
Call-ID: SQOclJgm4O
Max-Forwards: 70
Supported: replaces, outbound
Event: presence
Expires: 600
Accept: application/pidf+xml
Contact: <sip:[email protected];transport=udp>;+sip.instance="<urn:uuid:abcdf51a-82e0-49b9-a8ab-2461011f25ec>"
User-Agent: Linphone/3.12.0 (belle-sip/1.6.3)
Authorization: Digest realm="asterisk", nonce="4224acfb", algorithm=MD5, username="john", uri="sip:[email protected]", response="eb30a9801e78d2cb2c58c61200c50cb1"

<------------->
--- (14 headers 0 lines) ---

<--- Transmitting (no NAT) to 10.27.128.3:5060 <http://10.27.128.3:5060> --->
*SIP/2.0 500 Server error*
Via: SIP/2.0/UDP 10.27.128.3:5060;branch=z9hG4bK.RNv418~xv;received=10.27.128.3;rport=5060
From: <sip:[email protected]>;tag=c3Wvuu2XH
To: sip:[email protected];tag=as3c7de68c
Call-ID: SQOclJgm4O
CSeq: 21 SUBSCRIBE
Server: Asterisk PBX 13.14.1~dfsg-2+deb9u4
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Content-Length: 0


<------------>

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