wireshark capture fails

[mkorneyc]

Hello Team,
Could you please help me with the issue below? Not sure if it’s a bug or if I did something wrong.

I’ve installed containerlab on a WSL host and tried to get Wireshark with Edgeshark fully working. I’m using the VS Code extension, and when I try to run the capture(via vscode extension GUI) I get the following error:

Error from extcap pipe: time="2025-10-01T23:20:17+02:00" level=error msg="querying targets from GhostWire-on-Packetflix service failed: Get \"http://localhost:5001/discover/mobyshark\": dial tcp: lookup localhost on 150.213.1.3:53: no such host"
time="2025-10-01T23:20:17+02:00" level=error msg="cannot contact capture service via websocket: dial tcp: lookup localhost on 150.213.1.3:53: no such host"
time="2025-10-01T23:20:17+02:00" level=error msg="cannot start capture: dial tcp: lookup localhost on 150.213.1.3:53: no such host"
time="2025-10-01T23:20:17+02:00" level=error msg="finished with status code 1"

Capturing via VNC or manually via Wireshark by changing localhost to 127.0.0.1 works fine. Modifying the hosts file and nsswitch.conf does not solve the issue. All tests show that localhost is actually 127.0.0.1, and everything was working outside WSL.

Maybe someone can suggest how to fix this?

[hellt]

Paging @kaelemc and @FloSch62

[kaelemc]

@mkorneyc Where are the logs from, is this from Wireshark?

You can try statically set the vscode containerlab.remote.hostname to 127.0.0.1 as a band-aid fix.

[mkorneyc]

Yes, there were wireshark logs. Your fix works just fine. Thank you!