14 Mar
2016
14 Mar
'16
10:36 p.m.
sorry，I have not expressed clearly.
kamailio will recive two REGISTER at a time.In first 200 OK to REGISTER,
Server will tell Linphone the Linphone Nat Ip and Port.
like this:
Via:SIP/2.0/TCP 30.9.2.1:50691
;received=42.1.7.1;alias;branch=z9hG4bK.kmhC2L9Rf;rport=33746
and Linphone will know it's outside nat Ip and port, Linphone while use
this Ip and Port in second REGISTER.
like this:
REGSITER
Contact:<sip: 42.1.7.1:33746;transport=tcp>
So kamailio server know Linphone's nated ip and port and save in DB(contact
field).
my question is KA_EDGE receive sip from KA_REGISTER already have right nat
ip and port like
INVITE 123456@42.1.7.1:33746;transport=tcp SIP/2.0
but KA_EDGE do not send this sip msg to 42.1.7.1:33746, it send to another
nat ip and port(other Linphone's ip and port behind same NAT layer)
2016-03-14 21:42 GMT+08:00 Daniel-Constantin Mierla <miconda(a)gmail.com>om>:
Indeed, the ports are different, that's why adding
received is important
in this situation.
While local ip and local port are in most of the cases also unique for
devices behind a nat router, it is not 100% true, because there can be many
layers of NATs, which can result in seeing same local ip/port for devices.
Cheers,
Daniel
On 14/03/16 13:06, 张顺通 wrote:
source IP is same, But port is different。
like INVITE sip:Linphone_nat_Ip:Linphone_nat_port;tcp;
2016-03-14 18:26 GMT+08:00 Daniel-Constantin Mierla < <miconda(a)gmail.com>
miconda(a)gmail.com>gt;:
Adding received information to Path helps to
identify properly the
connection to be used. Because both devices are behind the same NAT,
practically they show the same source IP when they send traffic to server.
Cheers,
Daniel
On 14/03/16 04:05, 张顺通 wrote:
KA_EDGE have two IP，external public IP and internal IP.
I add modparam("path", "use_received", 1) and replace add_path()
to add_path_received() in edge server.
add modparam("registrar", "path_use_received", 1) in KA_REGISTER
server.
DB path info <sip:aD15fXXXXXXXXXXXXeEpfqRY=@10.10.10.11;lr;ob> --> <sip:
10.10.10.11;lr;received=sip:42.129.1.1:43640%3Btransport%3Dtcp>
This kind of situation very little，It is not easy to reappear.
Can you tell me why this situation happen? and Why this change can solve
the problem?
Thanks for Your Time.
2016-03-09 22:37 GMT+08:00 Daniel Tryba < <d.tryba(a)pocos.nl>
d.tryba(a)pocos.nl>gt;:
--
Daniel-Constantin Mierlahttp://www.asipto.comhttp://twitter.com/#!/miconda -
http://www.linkedin.com/in/miconda
Kamailio World Conference, Berlin, May 18-20, 2016 - http://www.kamailioworld.com
On Wed, Mar 09, 2016 at 10:05:11PM +0800, 张顺通
wrote:
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--
Daniel-Constantin Mierlahttp://www.asipto.comhttp://twitter.com/#!/miconda -
http://www.linkedin.com/in/miconda
Kamailio World Conference, Berlin, May 18-20, 2016 - http://www.kamailioworld.com
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Yes，Use Path in DB. like
<sip:XXxXXXXXXXXXX/ogxZg=@10.10.232.29;lr;ob>
KA_REGISTER wile the path info in DB.
Should not be a problem if you use the use_received options in
http://kamailio.org/docs/modules/stable/modules/path.html#idp135216
and
http://kamailio.org/docs/modules/stable/modules/registrar.html#registrar.p.…
(and actually add the source as received on the kamailio edge server).
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