How is eth0 created in the WSL2?

[anlexN]

$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet 10.255.255.254/32 brd 10.255.255.254 scope global lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host proto kernel_lo
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 00:15:5d:13:8f:b6 brd ff:ff:ff:ff:ff:ff
    altname enx00155d138fb6
    inet 172.29.43.111/20 brd 172.29.47.255 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::215:5dff:fe13:8fb6/64 scope link proto kernel_ll
       valid_lft forever preferred_lft forever
3: br-44b3f3a380fb: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default
    link/ether d6:df:a4:2a:96:fa brd ff:ff:ff:ff:ff:ff
    inet 172.18.0.1/16 brd 172.18.255.255 scope global br-44b3f3a380fb
       valid_lft forever preferred_lft forever
4: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default
    link/ether 9e:8c:b2:c3:b2:fd brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever
       
$ ip route show | grep -i default | awk '{ print $3}'
172.29.32.1

I also have another question:

1. why 172.29.43.111/20's broadcast address is 172.29.47.255, not 172.29.43.255?
2. eth0 do not use bridge mode?
3. why gateway is 172.29.32.1? why not 172.29.49.1?

[zcobol]

@anlexN look on the host side for answer!

In an elevated powershell run get-hnsnetwork or get-hnsendpoint (this cmdlet will return info only when there's a WSL instance running)

Also hnsdiag.exe provides good information about WSL networking.

[anlexN]

hello, @zcobol Have you tried Incus to create VM in the WSL2?
Now, my VMs can not ping each other. see detail