wsl2-port-forwarding.ps1

$remoteport = bash.exe -c "ip addr show eth0 | grep 'inet '"
$found = $remoteport -match '\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}';

if( $found ){
  $remoteport = $matches[0];
} else{
  echo "The Script Exited, the ip address of WSL 2 cannot be found";
  exit;
}

Write-Host 'WSL2 IP:' $remoteport

#[Ports]
#All the ports you want to forward separated by coma
$ports=@(80,443,8200);

#[Static ip]
#You can change the addr to your ip config to listen to a specific address
$addresses=@('127.0.0.1', '192.168.1.128');
$ports_a = $ports -join ",";

#Remove Firewall Exception Rules
iex "Remove-NetFireWallRule -DisplayName 'WSL 2 Firewall Unlock' ";

#adding Exception Rules for inbound and outbound Rules
iex "New-NetFireWallRule -DisplayName 'WSL 2 Firewall Unlock' -Direction Outbound -LocalPort $ports_a -Action Allow -Protocol TCP";
iex "New-NetFireWallRule -DisplayName 'WSL 2 Firewall Unlock' -Direction Inbound -LocalPort $ports_a -Action Allow -Protocol TCP";

for( $j = 0; $j -lt $addresses.length; $j++) {
  for( $i = 0; $i -lt $ports.length; $i++ ){
    $port = $ports[$i];
    $addr = $addresses[$j];
    Write-Host "Adding mapping for port $($addr):$($port)"
    iex "netsh interface portproxy delete v4tov4 listenport=$port listenaddress=$addr";
    iex "netsh interface portproxy add v4tov4 listenport=$port listenaddress=$addr connectport=$port connectaddress=$remoteport";
  }
}