When pinging after activating a Wireguard VPN, WSL gets just one response, then nothing more.

[rdbisme]

Environment

Platform ServicePack Version      VersionString
-------- ----------- -------      -------------
 Win32NT             10.0.19042.0 Microsoft Windows NT 10.0.19042.0

Distro:

$> cat /etc/os-release
NAME="Arch Linux"
PRETTY_NAME="Arch Linux"
ID=arch
BUILD_ID=rolling
ANSI_COLOR="38;2;23;147;209"
HOME_URL="https://www.archlinux.org/"
DOCUMENTATION_URL="https://wiki.archlinux.org/"
SUPPORT_URL="https://bbs.archlinux.org/"
BUG_REPORT_URL="https://bugs.archlinux.org/"
LOGO=archlinux]

WSL Version: 2 (Linux version 4.19.104-microsoft-standard (oe-user@oe-host) (gcc version 8.2.0 (GCC)) #1 SMP Wed Feb 19 06:37:35 UTC 202)

Steps to reproduce

WSL logs:

1. Install Wireguard Official Client
2. Import a Tunnel configuarion file of the type

   
   [Interface]
   PrivateKey = </snip>
   ListenPort = 51820
   Address = 10.0.0.250/24

[Peer] PublicKey = AllowedIPs = 10.0.0.1/32, 192.168.1.0/24 Endpoint = :51820 PersistentKeepalive = 30

3. Activate the tunnel 
4. Ping `10.0.0.1` from within the WSL

$> ping 10.0.0.1 PING 10.0.0.1 (10.0.0.1) 56(84) bytes of data. 64 bytes from 10.0.0.1: icmp_seq=1 ttl=63 time=60.4 ms

#  Expected behavior
The WSL should be able to ping the VPN host at the IP 10.0.0.1

# Actual behavior
The ping receives just one single response, then nothing. 

## There's a workaround to make it work: 

Repeat step 1-3 of the procedure reported above.

4a. Ping `10.0.0.1` **from the host**

Pinging 10.0.0.1 with 32 bytes of data: Reply from 10.0.0.1: bytes=32 time=58ms TTL=64 Reply from 10.0.0.1: bytes=32 time=60ms TTL=64 Reply from 10.0.0.1: bytes=32 time=58ms TTL=64 Reply from 10.0.0.1: bytes=32 time=59ms TTL=64

4b. Ping `10.0.0.1` from within the WSL

PING 10.0.0.1 (10.0.0.1) 56(84) bytes of data. 64 bytes from 10.0.0.1: icmp_seq=1 ttl=63 time=57.3 ms 64 bytes from 10.0.0.1: icmp_seq=2 ttl=63 time=59.9 ms 64 bytes from 10.0.0.1: icmp_seq=3 ttl=63 time=58.9 ms 64 bytes from 10.0.0.1: icmp_seq=4 ttl=63 time=59.7 ms 64 bytes from 10.0.0.1: icmp_seq=5 ttl=63 time=58.2 ms 64 bytes from 10.0.0.1: icmp_seq=6 ttl=63 time=60.6 ms 64 bytes from 10.0.0.1: icmp_seq=7 ttl=63 time=58.9 ms 64 bytes from 10.0.0.1: icmp_seq=8 ttl=63 time=60.3 ms 64 bytes from 10.0.0.1: icmp_seq=9 ttl=63 time=58.5 ms

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[rdbisme]

5764 looks related

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This issue has been automatically closed since it has not had any activity for the past year. If you're still experiencing this issue please re-file this as a new issue or feature request.

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