nshwsl

WSL network helper tool

(Re)creates the WSL network with a specific subnet 192.168.222.0/24 and adds an alias 192.168.222.222 for the assigned range.
In case the IP is already set, the error can be ignored.
This works on Windows 10+ but requires sudo permissions for the ip addr command.
In Windows 11 /etc/wsl.conf supports a command in the [boot] section executed as root to set the IP.
For now use the same approach also for Win 11.

Supports to specify a class C IP and calculates the network and gateway addresses accordingly.

You can specify an explicit IP address. In this case the class C subnet is automatically calculated.

Example:

nshwsl.exe 192.168.222.222

nshwsl: WSL Network setup helper tool
Existing WSL Network deleted
WSL Network created

WSL Network setup done
----------------------------------------
Address: [192.168.222.222]
Network: [192.168.222.0]
Gateway: [192.168.222.1]

References and thanks for inspiration:

microsoft/WSL#7395 https://github.com/skorhone/wsl2-custom-network

Useful commands:

For testing: Powershell Get current settings :

Get-HnsNetwork | Where-Object { $_.Name -Eq "WSL" }  ( | Remove-HNSNetwork )
Get-HNSEndpoint  ( | Remove-HNSEndpoint )

Get WSL container IP:

wsl hostname -I

Set addtional IP

wsl sudo ip a add 192.168.222.222/24 dev eth0

List running VMs

hcsdiag.exe list