Hi,
Are the packets from the Phone to the Asterix sever UDP or TCP packets
if you examine a few of those packets
Can you see SIP inside?(look in the bytes pane as it's a text base
protocol you should be able to identify it)
If they are TCP packets what ports are used? (Check
Edit->preferences->Protocols->SIP for the TCP port preference used).
Best regards
Anders
-----Original Message-----
From: wireshark-users-bounces@xxxxxxxxxxxxx
[mailto:wireshark-users-bounces@xxxxxxxxxxxxx] On Behalf Of Cliff
Weisgerber
Sent: den 22 mars 2007 18:02
To: 'Community support list for Wireshark'
Subject: Re: [Wireshark-users] VoIP Analysis for Dummies
Jaap,
Yes, it is a LinkSys NH1005. I believe it is indeed a hub as I can see
traffic between HUD on my PC and my asterisk box. I see multicast
packets from a LinkSys phone (obviously) and, if I do not filter, I see
a bunch of stuff between my PC, the two phones and everywhere else hence
my previaously stated belief ;)
I see no SIP or RTP packets and am lost as to why.
Cliff
"On Wednesdays I go shopping and have buttered scones for tea."
-----Original Message-----
From: wireshark-users-bounces@xxxxxxxxxxxxx
[mailto:wireshark-users-bounces@xxxxxxxxxxxxx] On Behalf Of Jaap Keuter
Sent: Thursday, March 22, 2007 10:38 AM
To: Community support list for Wireshark
Subject: Re: [Wireshark-users] VoIP Analysis for Dummies
Hi,
Are you ABSOLUTELY sure it's a hub? Many are switches underneath.
Check out the Wireshark Wiki on suspicious hubs.
Thanx,
Jaap
On Thu, 22 Mar 2007, Cliff Weisgerber wrote:
>
>
> Hi,
>
>
>
> I am trying to use wireshark to trace VoIP activity. First, I must
> plead ignorance as far as doing network sniffs - I have used ethereal
> in the
past
> and now wireshark but am no expert at this.
>
>
>
> My problem: I see no SIP or RTP traffic on the traces I am doing. I
> am filtering out just the traffic between a couple of phones, the
> gateways in the network and my asterisk server. My phones and the PC
> running
wireshark
> are all on the same LinkSys hub so I should see this stuff, shouldn't
I?
I
> make calls between the phones and see nothing.
>
>
>
> What am I not doing correctly?
>
>
>
> Thanks for helping a newbie!
>
>
>
> Cliff Weisgerber
>
>
>
> Cliff
>
> "On Wednesdays I go shopping and have buttered scones for tea."
>
>
>
>
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