Set up http/https proxy inside WSL.

https://learn.microsoft.com/en-us/windows/wsl/networking

Port

If the v2ray has the following setting:

本地：[socks:10808] | [http:10809]
局域网：[socks:10810] | [http:10811]

Then:

PROXY_PORT=10811

NAT

WINDOWS_HOST=`cat /etc/resolv.conf|grep nameserver|awk '{print $2}'`

export http_proxy=http://$WINDOWS_HOST:$PROXY_PORT
export https_proxy=http://$WINDOWS_HOST:$PROXY_PORT
export HTTP_PROXY=http://$WINDOWS_HOST:$PROXY_PORT
export HTTPS_PROXY=http://$WINDOWS_HOST:$PROXY_PORT

Mirrored

In C:\Users\songz\.wslconfig of Windows host:

[experimental]
autoMemoryReclaim=gradual  # gradual  | dropcache | disabled
networkingMode=mirrored
dnsTunneling=true
firewall=true
autoProxy=true

Then in WSL2:

WINDOWS_HOST=localhost

export http_proxy=http://$WINDOWS_HOST:$PROXY_PORT
export https_proxy=http://$WINDOWS_HOST:$PROXY_PORT
export HTTP_PROXY=http://$WINDOWS_HOST:$PROXY_PORT
export HTTPS_PROXY=http://$WINDOWS_HOST:$PROXY_PORT