[WSL 2] NIC Bridge mode 🖧 (Has TCP Workaround🔨)

Issue

WSL 2 seems to NAT it's virtual network, instead of making it bridged to the host NIC. My goal is for a service running in Ubuntu in WSL 2 to be accessible from anywhere on my local network.

Issue Details

• Your Windows build number: Microsoft Windows [Version 10.0.18917.1000]

• What you're doing and what's happening:
  Running ipconfig on my Windows 10 host machine

   IPv4 Address. . . . . . . . . . . : 192.168.1.41
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.1.1

Running ifconfig in Ubuntu WSL 2

eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 172.18.72.60  netmask 255.255.0.0  broadcast 172.18.255.255

Accessing 172.18.72.60 from my Window host does work, however this IP is not accessible from another system on my network.

• What's wrong / what should be happening instead:
  I would expect to ifconfig in Ubuntu WSL 2 to have an IP address in the same network as my host machine.

• Searching the docs:
  The only detail I have found about WSL 2 networking is the following that notes that it will have it's own IP and that localhost is something that will be used for WSL 2 in the future.
  https://docs.microsoft.com/en-us/windows/wsl/wsl2-ux-changes
  This is fine, however I would like the IP WSL 2 is getting to be on my local LAN which means I need to configure the virtual NIC to be bridged.

Workaround

See @edwindijas https://github.com/microsoft/WSL/issues/4150#issuecomment-504209723

No source file or test is named; start by reviewing the issue discussion and the linked TCP workaround, then inspect the WSL 2 networking design. Done means a WSL 2 Ubuntu instance receives a bridged address on the host LAN and services are reachable from other local-network systems.