In mirrored network mode, Devices on the same LAN subnet can access ports within my WSL2, but those on different subnets cannot.

[JustLookAtNow]

Windows Version

10.0.22635.3430

WSL Version

2.2.1.0

Are you using WSL 1 or WSL 2?

• WSL 2
• WSL 1

Kernel Version

5.15.150.1

Distro Version

Ubuntu 22.04

Other Software

No response

Repro Steps

Listening on port 6400 within WSL2, then attempting to telnet to this port from devices on different subnets.

Expected Behavior

devices from all subnets can telnet successfully.

Actual Behavior

My device's IP is 192.168.1.123. I can successfully telnet to 192.168.1.123 port 6400 from devices with IPs in the range of 192.168.1.x. However, devices in other ranges like 192.168.2.x cannot telnet successfully. But if I listen on port 6400 on Windows, devices from all subnets can telnet successfully.

Diagnostic Logs

No response

[github-actions]

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View similar issues

Please view the issues below to see if they solve your problem, and if the issue describes your problem please consider closing this one and thumbs upping the other issue to help us prioritize it!

Open similar issues:

• Cannot connect WSL2 vEth interfaces in Mirrored mode even hostAddressLoopback is true. (#10731), similarity score: 0.75
• mirrored networking mode doesn't allow host to use IP to reach the service in WSL (#11034), similarity score: 0.75

Closed similar issues:

• Mirrored network, port listen in Windows not accessable from WSL using external LAN ip. (#10611), similarity score: 0.81
• In Mirrored mode incoming packets from remote device on LAN are not received in WSL2 (#10535), similarity score: 0.79
• Networking mirrored can't work on WSL2 (#10632), similarity score: 0.77

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[JustLookAtNow]

WslLogs-2024-04-11_10-51-37.zip
here is the logs.

I used nc to listen on port 6400 in WSL2 and attempted to telnet to it from devices on other subnets. However, this was unsuccessful.

[github-actions]

Diagnostic information

.wslconfig found
Detected appx version: 2.2.1.0
Unexpected format in optional-component.txt: State       : DisabledWithPayloadRemoved

[JustLookAtNow]

The issue was resolved after closing the VPN and uninstalling the virtual network adapter.