[SR-Users] Kamailio 4.3 decrypting SIP-TLS

Remsik,Robert Robert.Remsik at colostate.edu
Fri Feb 16 21:28:49 CET 2018


I'm working on setting up our kamailio instance to use TLS for inter-phone communication and so far I've been able to configure the GUI and get it to work which is great.  However, I'm trying to grab a packet capture and decode the TLS session to get the SIP ladder (so I can troubleshoot issues) and so far I've been unable to.  I've been following the article at: http://packetpushers.net/using-wireshark-to-decode-ssltls-packets/ and using the kamailio self-signed cert as I think that's the cert being used with no success.  I'm getting the Cipher Suite: TLS_RSA_WITH_AES_256_CBC_SHA (0x0035) which doesn't use perfect forward secrecy so it should be able to be decoded.

Is there a way to decode the kamailio TLS encoded communications so I can troubleshoot issues that may come up?

Thank you in advance,

Robert Remsik


Desk Phone: 970 491 7120

Robert.Remsik at colostate.edu
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