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fubits1/WSL2-Forward-Ports.ps1

Created August 13, 2024 22:56
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WSL2: forward ports (e.g. localhost:4321 / 0.0.0.0:5173)
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WSL2-Forward-Ports.ps1
# source https://jwstanly.com/blog/article/Port+Forwarding+WSL+2+to+Your+LAN/
$ports = @(80, 443, 4321, 5173);
$wslAddress = bash.exe -c "ifconfig eth0 | grep -oP '(?<=inet\s)\d+(\.\d+){3}'"
if ($wslAddress -match '^(\d{1,3}\.){3}\d{1,3}$') {
Write-Host "WSL IP address: $wslAddress" -ForegroundColor Green
Write-Host "Ports: $ports" -ForegroundColor Green
}
else {
Write-Host "Error: Could not find WSL IP address." -ForegroundColor Red
exit
}
$listenAddress = '0.0.0.0';
foreach ($port in $ports) {
Invoke-Expression "netsh interface portproxy delete v4tov4 listenport=$port listenaddress=$listenAddress";
Invoke-Expression "netsh interface portproxy add v4tov4 listenport=$port listenaddress=$listenAddress connectport=$port connectaddress=$wslAddress";
}
$fireWallDisplayName = 'WSL Port Forwarding';
$portsStr = $ports -join ",";
Invoke-Expression "Remove-NetFireWallRule -DisplayName $fireWallDisplayName";
Invoke-Expression "New-NetFireWallRule -DisplayName $fireWallDisplayName -Direction Outbound -LocalPort $portsStr -Action Allow -Protocol TCP";
Invoke-Expression "New-NetFireWallRule -DisplayName $fireWallDisplayName -Direction Inbound -LocalPort $portsStr -Action Allow -Protocol TCP";
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