Hello, When I execute 'xterm h2' in mininet, I get the following error: ``` Error: Cannot connect to display ``` I think this has something to do with docker containers. This prevents me from running wireshark on any host. In Exercise 6: Segment Routing v6 (SRv6) it is mentioned that: > To verify that the device inserts the correct SRv6 header, you can use Wireshark to capture packet from each device port. How should I run wireshark to capture the packet? If anyone can help, thank you!