Need to capture network traffic and analyse by wireshark.
Command to capture traffic

tcpdump -ni any host 172.1.1.13 -s 0 -w /tmp/traffic.pcap

вт, 14 нояб. 2017 г., 3:14 Wilkins, Steve <swwilk...@mitre.org>:

> Hello,
>
>
>
> I am new to Kamailio and to the Kamailio Mailing list and hope I am using
> it appropriately.
>
>
>
> I am using Kamailio version 5.0.3 (x86_64/linux), and it is installed and
> working on a Centos 7 Sever.  I use Kamailio as a SIP Proxy Server for
> Asterisk and things seem to work fine, however, I do have an issue and a
> question for which I am trying to understand and am hoping someone can help
> me with.
>
>
>
> For the sake of the argument, my server name is *myServer*, and it’s IP
> Address is *172.1.1.13*; Asterisk is on a different server.
>
>
>
> *Issue*:  Every 10 seconds I get an Error message in the Kamailio log
> which says =>
>
>
>
> *Nov 13 18:10:55 myServer /usr/local/sbin/kamailio[29188]: ERROR: <core>
> [core/tcp_main.c:2660]: tcpconn_1st_send(): connect 172.1.1.13:59794
> <http://172.1.1.13:59794> failed (RST) Connection refused.*
>
>
>
> I do not know what triggers this error, and as mentioned, things do seem
> to work; I can make calls and use sip tools which pass requests through the
> Kamailio to Asterisk.  Does anyone know what could be causing this Error?
> I do not understand *what is trying to connect to what* at such a high
> port.
>
>
>
>
>
> Question: The way I understand it, *rtpproxy* is needed to pass
> video/audio through Kamailio to Asterisk.  However, even without
> *rtpproxy* running, I get video through to Asterisk and the video plays
> with no issues on a sip device (e.g. MicroSIP).  I am confused what I need
> *rtpproxy* for.
>
> Note: Even with no *rtpproxy*, I get the same error mentioned above in
> the Issue section.
>
>
>
> Thank you,
>
>
>
>
>
>
>
>
>
>
> _______________________________________________
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>
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