[OpenSIPS-Users] NOTIFY nat_keepalive - Bad Event

[Carlo Dimaggio]

Hi all,

I'm using nat_traversal and the nat_keepalive function. For phones- 
compatibility I have to use the "NOTIFY" method but all my registered  
phones reply to opensips with "Bad Request / Bad Event" (with OPTIONS  
method some phones reply with "200 OK"). What I am wrong?

Can you help me?

Thanks,
Carlo Dimaggio



---- Opensips.cfg

modparam("nat_traversal", "keepalive_interval", 90)
modparam("nat_traversal", "keepalive_method", "NOTIFY")
modparam("nat_traversal", "keepalive_state_file", "/var/run/opensips/ 
keepalive_state")
[...]

if ((method=="REGISTER" || (method=="INVITE" && !has_totag())) &&  
client_nat_test("3"))
     {
         nat_keepalive();
     }

----

---- Trace with "NOTIFY"

#
U <IP_OPENSIPS>:5060 -> 10.0.8.183:5060
NOTIFY sip:10.0.8.183:5060 SIP/2.0.
Via: SIP/2.0/UDP <IP_OPENSIPS>:5060;branch=0.
From: sip:keepalive@<IP_OPENSIPS>;tag=4c2a2dbf.
To: sip:10.0.8.183:5060.
Call-ID: 2fe80f67-6c647fe7-27@<IP_OPENSIPS>.
CSeq: 1 NOTIFY.
Event: keep-alive.
Content-Length: 0.
.

#
U 10.0.8.183:5060 -> <IP_OPENSIPS>:5060
SIP/2.0 489 Bad Event.
Via: SIP/2.0/UDP <IP_OPENSIPS>:5060;branch=0.
From: sip:keepalive@<IP_OPENSIPS>;tag=4c2a2dbf.
To: <sip:10.0.8.183:5060>;tag=224300607.
Call-ID: 2fe80f67-6c647fe7-27@<IP_OPENSIPS>.
CSeq: 1 NOTIFY.
Contact: <sip:10.0.8.183:5060>.
Server: Aastra 55i/2.3.1.26.
Content-Length: 0.
.

-----

---- Trace with "OPTIONS"

#
U <IP_OPENSIPS>:5060 -> 10.0.8.183:5060
OPTIONS sip:10.0.8.183:5060 SIP/2.0.
Via: SIP/2.0/UDP <IP_OPENSIPS>:5060;branch=0.
From: sip:keepalive@<IP_OPENSIPS>;tag=6386f398.
To: sip:10.0.8.183:5060.
Call-ID: 406b0979-64c6436a-27@<IP_OPENSIPS>.
CSeq: 1 OPTIONS.
Content-Length: 0.
.

#
U 10.0.8.183:5060 -> <IP_OPENSIPS>:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP <IP_OPENSIPS>:5060;branch=0.
From: sip:keepalive@<IP_OPENSIPS>;tag=6386f398.
To: <sip:10.0.8.183:5060>;tag=85691902.
Call-ID: 406b0979-64c6436a-27@<IP_OPENSIPS>.
CSeq: 1 OPTIONS.
Allow:  INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, OPTIONS, UPDATE,  
PRACK, SUBSCRIBE, INFO.
Server: Aastra 55i/2.3.1.26.
Content-Length: 0.
.

-----