Getting logs using the tcpdump application

tcpdump is a Linux utility for capturing and analyzing network traffic. It allows you to monitor packets passing through a network interface in real time and save them for further analysis.

Capturing Logs with the tcpdump Application

1. Connect to your PBX via SSH (instructions here).

2. Run the following command:

tcpdump -i eth0 -n -s 0 -vvv -w /tmp/capturefilename.pcap

Command in SSH connection

1. Reproduce the issue by making a phone call. After the call, press CTRL + C in the SSH console to stop tcpdump.

Command in SSH connection

1. Connect to the PBX using WinSCP (instructions here).
2. Send the log file /tmp/capturefilename.pcap to technical support.

File with logs