VoIP Ethernet Capture: Difference between revisions
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*Start Wireshark to capture the Ethernet packets with the connected laptop. | *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. | ||
*Access to the [[TMG7800-CTRL]] unit using SSH. | *Access to the [[TMG7800|TMG7800-CTRL]] unit using SSH. | ||
*Access the telecom unit ([[TMG7800-TE]], [[TMG7800-DS3]] or [[TMG7800-STM1]]) using telnet. | *Access the telecom unit ([[TMG7800|TMG7800-TE]], [[TMG7800|TMG7800-DS3]] or [[TMG7800|TMG7800-STM1]]) using telnet. | ||
telnet [eth0 IP address of the telecom unit] | telnet [eth0 IP address of the telecom unit] | ||
*Start Wireshark to capture the Ethernet packets with the connected laptop. | *Start Wireshark to capture the Ethernet packets with the connected laptop. | ||
Revision as of 02:17, 6 April 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
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.
TMG800
Once the physical setup is ready. It is possible to start capturing the RTP.
telnet 172.31.1.1
- 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 0x1 0x1 1
- To stop the capture
mv88eMonitor 0 0 1
Capture VoIP1 with VoIP0
- For capturing all Ethernet packets that goes through VoIP1 with VoIP0
mv88eMonitor 0x2 0x2 0
- To stop the capture
mv88eMonitor 0 0 0
TMG3200
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.
- Access to the Tmedia unit using SSH.
- Access the telecom baseboard of the Tmedia using telnet.
telnet 172.31.1.1
- 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
TMG7800
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.
- Access to the TMG7800-CTRL unit using SSH.
- Access the telecom unit (TMG7800-TE, TMG7800-DS3 or TMG7800-STM1) using telnet.
telnet [eth0 IP address of the telecom unit]
- 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