When collecting PCAPs on your local device for SDP Client-related issues, ensure that you always collect from both the wireless/wired interface AND the tunnel interface. Otherwise, you aren’t capturing all the VPN-related traffic.
PCAPs can be captured using Wireshark.
For Windows machine running WVPN before v5.4
Running Wireshark and selecting the wireless/wired interface and CatoNetworksVPN tunnel interface -
Step 1: Launch Wireshark and click the Capture Option.
Step 2: Select the wireless and/or wired interface, and the CatoNetworksVPN interface.
Step 3: Click Start to start capturing traffic on the selected interface.
For Windows machines running WVPN v5.4 and later
*Note: In later versions, the tunnel adapter is called "CatoNetworks"
For MAC machine
Step 1: Open the MVPN and check assigned Cato IP address
Step 2: Launch the terminal and run “ifconfig”. Then check which utun interface was assigned with the Cato IP address
To display utun interfaces only:
ifconfig | grep -A5 "^utun"
or
ifconfig | awk '/^utun/{flag=1} flag{print} /status:/{flag=0}'
Results should display output as below, making it easier to capture traffic.
Step 3: Launch wireshark and select wireless and/or wired interface, and the associated utun interface as identified in Step 2.
