Webrtc + pjsip + Monitoring SIP messages

[Tiagoggsouza]

Hello guys,

I Want to monitor my pjsip messages that send/receive from my webrtc(wss) but i’ve difficult with it, I’ve triyng to use sngrep but without sucess, I actived the HEP local Server with res_hep(res_hep_pjsip and res_hep_rtcp) in hep.conf to use sngrep but nothing happes, i used tcpdump to see the packet’s on port 9060 but nothing is passing, I don’t know if my logic is correct, i need some help.

hep.conf config:

[general]
enabled = yes

capture_address = 192.168.1.241:9060
capture_password = foo
capture_id = 1234
uuid_type = call-id

where the ip 192.168.1.241 is my asterisk server.

I’m using Webrtc(wss) + TLS(pem file) + Pjsip in asterisk 16, O.S centos 7.

[david551]

TLS uses 5061 and the capture will be encrypted. You would need to use Asterisk’s own logging for clear text.

[Tiagoggsouza]

Hello david, thanks to answer me…

I get SIP MESSAGES from port 8203 that I configured in http.conf at parameter tlsbindaddr.

when a use (pjsip set logger on) directly in console of asterisk, i can see sip messages clear,when a use tcpdump to get the sip messages from port 8203 all the packets is TLS encrypted, because of it a tried to use hep config, i tried to decrypt without success.

[david551]

@david551

You would need to use Asterisk’s own logging for clear text.

As already noted…

[jcbru0560]

Asterisk is not a HEP Server but has a built-in HEP Capture agent
If you want to monitor the flow using the HEP protocol, you have to build a HEP Capture Server

Try sipacture/homer

sipcapture/homer

the address in the hep.conf will be the server’s address where you want to rout all the logging messages

I built a HEP Capture Server using docker (Heplify) and it works. I am able to turn on the logging for HEP Capture for debugging purposes

[david551]

Oops. HEP is a new one on me and I misread 9060 as 5060.

I’d still suggest using the native capturing and logging if possible, as people are used to interpreting it, and it is synchronised with other relevant logging.

[Tiagoggsouza]

david551, ok it’s correct port 9060 thanks for help me , I will try to use the home server too, like a other option… thanks jcbru0560 for the hint.

[Tiagoggsouza]

Guys,

thanks for help me. I got monitoring sip messages using hep.conf

sngrep: I needed just open sngrep with lo interface and just configure EEP/HEP in sngrep, and my password in sngrep and hep.conf was different and because of it any packet is passing trere.

HEP Capture Server: is working, I just installed with quick intalling in centos7 and changed the server in hep.conf to another server that I UP.