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It means that ser cannot find the transaction that this ACK should
belong to and it thus tries to relay it to the request uri.<br>
The matching is done using from tag, to tag and call-id, so you should
check that these values match the CANCEL.<br>
g-)<br>
<br>
Ricardo Martinez wrote:
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<p><font face="Arial" size="2">Hello List.</font>
<br>
<font face="Arial" size="2">I have a problem with an ACK
message for a CANCEL. I'm just wondering if anyone knows what could be
happening here. It seems that SER can't route or "understand" this ACK</font></p>
<p><font face="Arial" size="2">ACK
<a class="moz-txt-link-abbreviated" href="mailto:sip:0299005622408196@sipvoiss.desa.redvoiss.net">sip:0299005622408196@sipvoiss.desa.redvoiss.net</a> SIP/2.0.</font>
<br>
<font face="Arial" size="2">v: SIP/2.0/UDP
192.168.1.100:5060;branch=z9hG4bK2861608023.</font>
<br>
<font face="Arial" size="2">f: "5502203289"
<a class="moz-txt-link-rfc2396E" href="mailto:sip:5502203289@sipvoiss.desa.redvoiss.net"><sip:5502203289@sipvoiss.desa.redvoiss.net></a>;tag=1349608987.</font>
<br>
<font face="Arial" size="2">t:
<a class="moz-txt-link-rfc2396E" href="mailto:sip:0299005622408196@sipvoiss.desa.redvoiss.net"><sip:0299005622408196@sipvoiss.desa.redvoiss.net></a>;tag=f146818fa4.</font>
<br>
<font face="Arial" size="2">i:
<a class="moz-txt-link-abbreviated" href="mailto:5c83a04822964085e07aabd210e9d72f@192.168.1.100">5c83a04822964085e07aabd210e9d72f@192.168.1.100</a>.</font>
<br>
<font face="Arial" size="2">CSeq: 4 ACK.</font>
<br>
<font face="Arial" size="2">l: 0.</font>
</p>
<p><font face="Arial" size="2">Could be something with the COMPACT
form ???</font>
</p>
<p><font face="Arial" size="2">This is the log from the debug : </font>
</p>
<p><font face="Arial" size="2">Mar 23 12:18:10 sipvoiss ser[5430]:
t_lookup_request: start searching: hash=52251, isACK=1 </font>
<br>
<b><font face="Arial" size="2">Mar 23 12:18:10 sipvoiss ser[5430]:
DEBUG: RFC3261 transaction matching failed </font></b>
<br>
<b><font face="Arial" size="2">Mar 23 12:18:10 sipvoiss ser[5430]:
DEBUG: t_lookup_request: no transaction found</font></b> <br>
<font face="Arial" size="2">Mar 23 12:18:10 sipvoiss ser[5430]: SER:
forwarding ACK statelessly </font>
<br>
<font face="Arial" size="2">Mar 23 12:18:10 sipvoiss ser[5430]:
DEBUG: mk_proxy: doing DNS lookup... </font>
<br>
<font face="Arial" size="2">Mar 23 12:18:10 sipvoiss ser[5430]:
get_record: lookup(_sip._udp.sipvoiss.desa.redvoiss.net, 33) failed </font>
<br>
<font face="Arial" size="2">Mar 23 12:18:10 sipvoiss ser[5430]:
sip_resolvehost: no SRV record found for sipvoiss.desa.redvoiss.net,
trying 'normal' lookup... </font></p>
<p><font face="Arial" size="2">Mar 23 12:18:10 sipvoiss ser[5430]:
check_via_address(10.0.0.248, 192.168.1.100, 0) </font>
<br>
<font face="Arial" size="2">Mar 23 12:18:10 sipvoiss ser[5430]:
Sending: ACK <a class="moz-txt-link-abbreviated" href="mailto:sip:0299005622408196@sipvoiss.desa.redvoiss.net">sip:0299005622408196@sipvoiss.desa.redvoiss.net</a> SIP/2.0^M
Max-Forwards: 10^M Record-Route:
<sip:10.0.0.246;ftag=2639303304;lr=on>^M Via: SIP/2.0/UDP
10.0.0.246;branch=0^M v: SIP/2.0/UDP
192.168.1.100:5060;received=10.0.0.248;branch=z9hG4bK365542204^M f:
"5502203289"
<a class="moz-txt-link-rfc2396E" href="mailto:sip:5502203289@sipvoiss.desa.redvoiss.net"><sip:5502203289@sipvoiss.desa.redvoiss.net></a>;tag=2639303304^M t:
<a class="moz-txt-link-rfc2396E" href="mailto:sip:0299005622408196@sipvoiss.desa.redvoiss.net"><sip:0299005622408196@sipvoiss.desa.redvoiss.net></a>;tag=2746a580a4^M
i: <a class="moz-txt-link-abbreviated" href="mailto:81983e61d980fd3ef0046dafe9518284@192.168.1.100^M">81983e61d980fd3ef0046dafe9518284@192.168.1.100^M</a> CSeq: 10 ACK^M l:
0^M ^M . </font></p>
<p><font face="Arial" size="2">Mar 23 12:18:10 sipvoiss ser[5430]:
orig. len=338, new_len=477, proto=1 </font>
<br>
<font face="Arial" size="2">Mar 23 12:18:10 sipvoiss ser[5430]:
DEBUG:destroy_avp_list: destroying list (nil) </font>
<br>
<font face="Arial" size="2">Mar 23 12:18:10 sipvoiss ser[5430]:
receive_msg: cleaning up </font>
</p>
<p><font face="Arial" size="2">What does it means : "RFC3261
transaction matching failed" and why ???</font>
</p>
<br>
<p><font face="Arial" size="2">The weird situation happend when
almost the same message arrives without the Compact Form : </font>
</p>
<p><font face="Arial" size="2">V102</font>
<br>
<font face="Arial" size="2">ACK
<a class="moz-txt-link-abbreviated" href="mailto:sip:0299005622408196@sipvoiss.desa.redvoiss.net">sip:0299005622408196@sipvoiss.desa.redvoiss.net</a> SIP/2.0.</font>
<br>
<font face="Arial" size="2">Via: SIP/2.0/UDP
10.0.0.237:5060;branch=z9hG4bK2364391837.</font>
<br>
<font face="Arial" size="2">From: "5502203289"
<a class="moz-txt-link-rfc2396E" href="mailto:sip:5502203289@sipvoiss.desa.redvoiss.net"><sip:5502203289@sipvoiss.desa.redvoiss.net></a>;tag=827237367.</font>
<br>
<font face="Arial" size="2">To:
<a class="moz-txt-link-rfc2396E" href="mailto:sip:0299005622408196@sipvoiss.desa.redvoiss.net"><sip:0299005622408196@sipvoiss.desa.redvoiss.net></a>;tag=6b466391a4.</font>
<br>
<font face="Arial" size="2">Call-ID:
<a class="moz-txt-link-abbreviated" href="mailto:43b2cc325b7fbe9f8790e4cee01dc4b3@10.0.0.237">43b2cc325b7fbe9f8790e4cee01dc4b3@10.0.0.237</a>.</font>
<br>
<font face="Arial" size="2">CSeq: 2 ACK.</font>
<br>
<font face="Arial" size="2">Content-Length: 0.</font>
</p>
<p><font face="Arial" size="2">This message works ok!.</font>
<br>
<font face="Arial" size="2">....</font>
<br>
<font face="Arial" size="2">...</font>
<br>
<b><font face="Arial" size="2">Mar 23 16:30:06 sipvoiss ser[5974]:
DEBUG: RFC3261 transaction matched, tid=424819551</font></b> <br>
<font face="Arial" size="2">Mar 23 16:30:06 sipvoiss ser[5974]:
DEBUG: t_lookup_request: transaction found (T=0x404ce3e8) </font>
<br>
<font face="Arial" size="2">Mar 23 16:30:06 sipvoiss ser[5974]:
DEBUG: cleanup_uac_timers: RETR/FR timers reset </font>
<br>
<font face="Arial" size="2">Mar 23 16:30:06 sipvoiss ser[5974]:
DEBUG: add_to_tail_of_timer[2]: 0x404ce430 </font>
<br>
<font face="Arial" size="2">Mar 23 16:30:06 sipvoiss ser[5974]:
DEBUG:destroy_avp_list: destroying list (nil) </font>
<br>
<font face="Arial" size="2">Mar 23 16:30:06 sipvoiss ser[5974]:
receive_msg: cleaning up </font>
</p>
<p><font face="Arial" size="2">Can someone give me a hand here?</font>
<br>
<font face="Arial" size="2">Thanks in advance</font>
</p>
<p><font face="Arial" size="2">Regards,</font>
<br>
<font face="Arial" size="2">Ricardo Martinez-</font>
</p>
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