[OpenIMSCore-CSCF] Resent Packet on wireshark

[Arnaud M. <arn...@gm...>]

Hello everyone,

I am currently working with openimscore and displaying SIP trace with
Wireshark. The problem is that wireshark is displaying 2 identical frames.
Example :

----------------------------------------------------------------------------------------------

Frame 22 (1205 bytes on wire, 1205 bytes captured)
Internet Protocol, Src: 172.20.110.236 (172.20.110.236), Dst:
172.20.110.230 (172.20.110.230)
User Datagram Protocol, Src Port: 4060 (4060), Dst Port: 6060 (6060)

Session Initiation Protocol
    Request-Line: INVITE sip:23...@op... SIP/2.0
        Method: INVITE
        [Resent Packet: False]
    Message Header
        Route: <sip:or...@sc...:6060;lr>

        Record-Route: <sip:mo...@pc...:4060;lr>

----------------------------------------------------------------------------------------------
Frame 23 (1205 bytes on wire, 1205 bytes captured)

Internet Protocol, Src: 172.20.110.236 (172.20.110.236), Dst: 172.20.110.230
(172.20.110.230)
User Datagram Protocol, Src Port: 4060 (4060), Dst Port: 6060 (6060)
Session Initiation Protocol
Request-Line: INVITE sip:23...@op... SIP/2.0
Method: INVITE
[Resent Packet: True]
[Suspected resend of frame: 22]
Message Header
Route: <sip:or...@sc...:6060;lr>
Record-Route: <sip:mo...@pc...:4060;lr>



This is very strange. Do CSCF resent frames or is it a bad configuration
with wireshark ?
Thank you for your help !

Cheers,
Arnaud Morin.