win：

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C:\Users\Administrator\.wslconfig

win写这个文件为：

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[wsl2]
networkingMode=mirrored
dnsTunneling=true
firewall=false
autoProxy=true

win重启，然后ps关闭防火墙：

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# 允许 ICMPv4 入站流量（针对 ping）
New-NetFirewallRule -DisplayName "WSL Ping Allow" -Direction Inbound -InterfaceAlias "vEthernet (WSL)" -Action Allow -Protocol ICMPv4

wsl:

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cc@DESKTOP-564RG57:~$ cat /etc/resolv.conf
# This file was automatically generated by WSL. To stop automatic generation of this file, add the following entry to /etc/wsl.conf:
# [network]
# generateResolvConf = false
nameserver 172.21.160.1

wsl ping 这个nameserver。