25 Nov
2005
25 Nov
'05
10:49 a.m.
Jiri Kuthan wrote:
What is tcp_analyze?
On a side-note: there is no easy TCP fitlering expression as both sides
of TCP connections may use ephemeral ports.
Yes, but usually at least one socket (the incoming) uses port 5060.
klaus
-jiri
At 08:04 AM 11/23/2005, Greger V. Teigre wrote:
I know another approach has been to:
a) Run tcpdump continously (or when tracing is required) and dump to a file
b) Use sip_analyze to generate the SIP trace in HTML and make it available
c) Make an HTML interface to sip_analyze where various filters could be set
This way a simple html form can be used to create a trace. The drawback is the tcpdump
file, but you could use rotatelogs and clean up old dumps in cron.
This is one of the things that many people would like (or would benefit from) and I'm
working on a debugging "framework" for the onsip.org Getting Started configs and
such a setup would be useful. I would be interested to hear from anyone who have a working
setup and who would like to contribute their code to open source.
g-)
----- Original Message ----- From: "Steve Blair" <blairs(a)isc.upenn.edu>
To: "Rodrigo P. Telles" <telles(a)devel.it>
Cc: <serusers(a)lists.iptel.org>
Sent: Tuesday, November 22, 2005 10:02 PM
Subject: Re: [Serusers] Remote Access for SIP trace
--
Jiri Kuthan http://iptel.org/~jiri/
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Rodrigo P. Telles wrote:
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Hi Folks,
I'm using SER in a carrier grade mode and I need to create an interface (GUI) to
our support team run SIP traces in our SER box.
I think I have an idea to solve that problem but I don't know if it's the best
one, follow the idea:
SERVER (SER)
1 - Run an application in daemon mode using libpcap to capture traffic on port 5060
- listening on a TCP port
- capture traffic all the time
- push all captured traffic to that TCP port (any one who connect/telnet on
that port can see the traffic - without authentication by now)
This is sort of what we did for basic troubleshooting. The difference is that we provide a
web
interface with three links, 10 second, 30 second and 60 second capture. The duration of
the
capture is then passed to a cgi script that runs ethereal and displays the results on the
web
page. You could probably improve upon this by adding address filtering options to the web
interface.
CLIENT (GUI)
2 - Developed using JAVA || PHP-GTK || C++ || ....
- Connect to remote port to listen the traffic
- Can filter what do you want to see (show only filtered traffic or all)
- Colorized matches
- Can save the result of your dump/filter to a file
- etc
The web interface I described allows us to avoid writing anything other than some php and
perl but a java interface would do too.
So I did a concept proof...
1 - Wrote a simple server program using Perl who run ngrep in SER box and push
the captured traffic through it's listening TCP port;
2 - Wrote a simple client program using Perl who connect to a remote port and
filter what you want to see or all the traffic;
..and works like
I'd probably do away with the client just because I don't like distributing
software to
clients but that's me :-)
a charm :-)
I'd like to hear opnions from SER members about the idea.
Best regards,
- --
============================================
Rodrigo P. Telles <telles(a)devel.it>
IT Manager
Devel-IT - http://www.devel.it
IVOZ # 1029
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