0
votes
1answer
80 views

SIP INVITE packet has WAN address rather than call manager LAN IP

I am using SIP between two subnets (192.168.3.0/24 and 192.168.30.0/24) each connected via VPN. I have a call server on 192.168.3.100, and two phones 192.168.30.118 (Ext. 3128) and 192.168.30.119 ...
5
votes
2answers
371 views

Is it possible for Wireshark to drop packets purposely?

I would like to test something like VoIP. I would like to test with some "artificial packet loss". Is Wireshark able to do this? Or is there any good solutions?
1
vote
6answers
3k views

How to record SIP traffic / calls for future auditing?

We have a VOIP (SIP?) phone system and have to record all calls for specific phones in the company. It may be required at a future date to listen to these calls for auditing. These phones happen to ...
1
vote
0answers
96 views

Why adding capture filters breaks the traffic dump in wireshark / windump?

I have a strange issue while trying to capture RTP (UDP) traffic. I have a phone using IP 192.168.9.4 and a Windows 2003 PC connected to the same switch (actually to the monitor port of the switch - ...
1
vote
2answers
62 views

How can I filter packets from a port monitor?

I have some data going from Point A to Point B. I have a SPAN monitor set up to a monitoring device C. To recreate some real world scenarios, I want to filter out all traffic which is a certain type ...
0
votes
2answers
246 views

Identifying VoIP Users

I'm looking for a way to identify as many consumer VoIP users on my ISP network as possible using packet analysis. My setup is like this: On my core switch, all traffic going in and out of gigabit1 ...
1
vote
1answer
729 views

Checking rtp stream audio quality

We are working in a test environment and need to monitor the audio quality of an rtp stream that is being captured using tshark. Right now we are able to capture the audio and access the file through ...