Update compare-versions.md

Author: craigloewen-msft

WSL/compare-versions.md

@@ -132,6 +132,11 @@ When using a WSL 1 distribution, if your computer was set up to be accessed by y
 
 This isn't the default case in WSL 2. WSL 2 has a virtualized ethernet adapter with its own unique IP address. Currently, to enable this workflow you will need to go through the same steps as you would for a regular virtual machine. (We are looking into ways to improve this experience.)
 
+Here's an example PowerShell command to add a port proxy that listens on port 4000 on the host and connects it to port 4000 to the WSL 2 VM with IP address 192.168.101.100.
+```powershell
+netsh interface portproxy add v4tov4 listenport=4000 listenaddress=0.0.0.0 connectport=4000 connectaddress=192.168.101.100
+```
+
 #### IPv6 access
 
 WSL 2 distributions currently cannot reach IPv6-only addresses. We are working on adding this feature.