How to capture packet from a specific LAN port in MX?

[CommunityUser-1]

When I go to Packet Capture, the only relevant choice is "LAN". I have a vendor router that's connected to port 5 of the MX and I wish to see the traffic that's passing through there. Any ideas?

[alemabrahao · Accepted solution]

It is not possible only from specific subnet, IP, Sevice Port or MAC.

https://documentation.meraki.com/General_Administration/Cross-Platform_Content/Packet_Capture_Overvi...

Once you start the packet capture on LAN, use filters to narrow down traffic:

• Filter by IP address of the vendor router.
• Filter by MAC address if known.
• Filter by protocol (e.g., TCP, UDP).