VoIP Ethernet Capture
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Candy Chan (Talk | contribs) (→Physical Setup) |
Candy Chan (Talk | contribs) (→Start Capturing) |
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Once the physical setup is ready. It is possible to start capturing the RTP. | Once the physical setup is ready. It is possible to start capturing the RTP. | ||
| − | *Start Wireshark to capture the Ethernet packets with the | + | *Start Wireshark to capture the Ethernet packets with the connected laptop. |
*Do one of the following command to capture packets according to your setup. | *Do one of the following command to capture packets according to your setup. | ||
Revision as of 00:19, 4 March 2011
The Tmedia product can configure one of its VoIP Ethernet ports to do Port Mirroring. This is useful when investigating RTP, Codecs or IP Tones issues.
Warning: When configuring a port as a mirror, it is important to connect that Ethernet port directly to a host. Otherwise, it will create problem with to the Ethernet switch
Contents |
Physical Setup
To do a VoIP capture it is required to:
- Connect one of the VoIP Ethernet port to a laptop with Wireshark installed and 1Gbs Network card.
- Access to the Tmedia unit using SSH.
- Access the telecom baseboard of the Tmedia using telnet.
telnet 172.31.1.1
Note: 172.31.1.1 is the default IP of the TMG's Telecom module.
Start Capturing
Once the physical setup is ready. It is possible to start capturing the RTP.
- Start Wireshark to capture the Ethernet packets with the connected laptop.
- Do one of the following command to capture packets according to your setup.
Capture VoIP0 with VoIP1
- For capturing all Ethernet packets that goes through VoIP0 with VoIP1
mv88eMonitor 0x4 0x4 3
- To stop the capture
mv88eMonitor 0 0 3
Capture VoIP1 with VoIP0
- For capturing all Ethernet packets that goes through VoIP1 with VoIP0
mv88eMonitor 0x8 0x8 2
- To stop the capture
mv88eMonitor 0 0 2
