Tracing packets - asterisk issues
Da Rock
freebsd-questions at herveybayaustralia.com.au
Tue Jan 25 10:44:10 UTC 2011
On 01/25/11 18:46, Bruce Ferrell wrote:
> On 01/24/2011 11:13 PM, Da Rock wrote:
>
>> I have been trying to get some pointers on my asterisk issues and I've
>> only been hearing crickets chirping (Asterisk list and here). I need a
>> pointer or two so I can fix this issue, so I'll try another angle.
>>
>> How do I trace IP packets across the network (pf firewall included)?
>> And would it be possible to read it visually (human readable)?
>>
>> Cheers
>>
> Use tcpdump to do a capture file. something like this:
>
> tcpdump -i eth0 -n -s 1500 -w sip.cap
>
> then feed sip.cap to wireshark
>
> filter for SIP and observe the SIP conversation
>
> It's also possible to decode the RTP stream
>
I've been using tcpdump on the asterisk server and both interfaces of
the firewall as well as the log interface. Unfortunately, its not giving
me the answers I want so far. Follow a stream from beginning to end, so
to speak, but I've been having trouble matching it up; especially with
the log.
Is it possible with wireshark to do this kind of matching if I capture
on all these interfaces?
Thx
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