TCP Dump from VX Enterprise or Prime Plus
This procedure applies only to VX Enterprise and VX Prime Plus units and does not include Legacy VX and VX Prime (fanless engine).
This section requires a TTY / terminal emulator program of some sort. Here, we will be using PuTTY.
- If you do not already have it installed, download, install, and open PuTTY.
- Connect via SSH to the VX's IP address using port 22. Say Yes to any authentication/security questions.
- Log in using these credentials:
User name: root
- Begin the packet trace by typing the following command. (See variables in red below)
tcpdump -i eth0 -w filename.pcap
- Recreate the issue: (place test call, or reattempt registration by loading a VX Show into a Studio)
- As soon as the issue has been replicated and recorded, press Ctrl + C to stop the packet capture.
Retrieve data from VX File System
The capture file now needs to be moved from the VX's file system to your PC.
- If you do not already have it installed, download, install, and open WinSCP.
- Enter the correct parameters for the new session:
File protocol: SCP
Host name: the IP address of your VX
Port number: 22
User name: root
- Click Login, and say Yes to any prompts about trusting an unknown host, etc. You are now logged in to the VX filesystem (right pane). You can also see your computer's file system (left pane).
- Use the WinSCP interface to navigate to the directory that houses the *.pcap file from the steps prior.
- Move the *.pcap file from the VX to a directory on your PC.
Close Client Connections
At this point, you have recorded and retrieved a packet capture of data present on the Ethernet interface of your choosing. Once you have found the capture file on your PC, please close out of WinSCP and PuTTY confirming disconnections if prompted.
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