Network not working in WSL2 and network config seems does not exist

[Somiona]

Environment

Windows build number: 10.0.19042.0
Your Distribution version: 20.04
Whether the issue is on WSL 2 and/or WSL 1: WSL 2

Steps to reproduce

My WSL installation:

C:\Users\54357>wsl -l -v
  NAME                   STATE           VERSION
* Ubuntu                 Stopped         2
  docker-desktop         Stopped         2
  docker-desktop-data    Stopped         2

As you can see, ifconfig and ip route shown nothing and ping 127.0.0.1 does not work either. I have tried some solution posted in other issue reports, none of those that I've tried works.

somion@Somion-Laptop:~$ ifconfig
somion@Somion-Laptop:~$ ip addr
1: lo: <LOOPBACK> mtu 65536 qdisc noop state DOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: bond0: <BROADCAST,MULTICAST,MASTER> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether c2:12:cb:bd:5b:5d brd ff:ff:ff:ff:ff:ff
3: dummy0: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 1a:d3:02:0c:0d:7e brd ff:ff:ff:ff:ff:ff
4: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 00:15:5d:85:6c:01 brd ff:ff:ff:ff:ff:ff
5: sit0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN group default qlen 1000
    link/sit 0.0.0.0 brd 0.0.0.0
somion@Somion-Laptop:~$ ip route
somion@Somion-Laptop:~$ ping 127.0.0.1
ping: connect: Network is unreachable

My host system do have working network, and here's what ipconfig reported under win10:

C:\Users\54357>ipconfig

Windows IP Configuration


Ethernet adapter Ethernet:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :

Wireless LAN adapter WLAN:

   Connection-specific DNS Suffix  . :
   IPv6 Address. . . . . . . . . . . : 240e:333:1042:8d20:c49f:4c2a:ca8c:6
   IPv6 Address. . . . . . . . . . . : 240e:333:1042:8d20:f810:80a4:fb2d:e3ba
   Temporary IPv6 Address. . . . . . : 240e:333:1042:8d20:1842:9ed0:9d1f:7ac5
   Link-local IPv6 Address . . . . . : fe80::f810:80a4:fb2d:e3ba%3
   IPv4 Address. . . . . . . . . . . : 192.168.3.53
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : fe80::1%3
                                       192.168.3.1

Ethernet adapter Bluetooth Ethernet:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :

Ethernet adapter vEthernet (WSL):

   Connection-specific DNS Suffix  . :
   Link-local IPv6 Address . . . . . : fe80::1875:5eb2:e38c:2463%45
   IPv4 Address. . . . . . . . . . . : 172.22.16.1
   Subnet Mask . . . . . . . . . . . : 255.255.240.0
   Default Gateway . . . . . . . . . : 

Expected behavior

There should be something shown after executed ifconfig, and network should works

Actual behavior

No network in Ubuntu WSL, as well as my docker installation.

[onomatopellan]

Since there is no IP in eth0 you could be hitting this bug #5437.

[Somiona]

Since there is no IP in eth0 you could be hitting this bug #5437.

Great! Thankyou, It's working now.