I am trying to fire up a Wireguard client in WSL (Ubuntu). I can successfully install wireguard and resolvconf using apt-get. I create the wireguard configuration file in /etc/wireguard/wg0.conf but cannot start it using wg-quick.

wg-quick up wg0

It results in the following error:

[#] ip link add wg0 type wireguard
[#] wg setconf wg0 /dev/fd/63
[#] ip -4 address add 192.168.17.77/24 dev wg0
[#] ip link set mtu 1340 up dev wg0
[#] resolvconf -a tun.wg0 -m 0 -x
/etc/resolvconf/update.d/libc: Warning: /etc/resolv.conf is not a symbolic link to /run/resolvconf/resolv.conf
[#] wg set wg0 fwmark 51820
[#] ip -6 route add ::/0 dev wg0 table 51820
[#] ip -6 rule add not fwmark 51820 table 51820
[#] ip -6 rule add table main suppress_prefixlength 0
[#] nft -f /dev/fd/63
[#] ip -4 route add 0.0.0.0/0 dev wg0 table 51820
[#] ip -4 rule add not fwmark 51820 table 51820
[#] ip -4 rule add table main suppress_prefixlength 0
[#] sysctl -q net.ipv4.conf.all.src_valid_mark=1
[#] nft -f /dev/fd/63
/dev/fd/63:5:73-86: Error: Could not process rule: No such file or directory

[#] resolvconf -d tun.wg0 -f
/etc/resolvconf/update.d/libc: Warning: /etc/resolv.conf is not a symbolic link to /run/resolvconf/resolv.conf
[#] nft -f /dev/fd/63
[#] ip -4 rule delete table 51820
[#] ip -4 rule delete table main suppress_prefixlength 0
[#] ip -6 rule delete table 51820
[#] ip -6 rule delete table main suppress_prefixlength 0
[#] ip link delete dev wg0

But the exact same procedure works in a Mint VM on my VMware Workstation. I suppose it’s because of the limitations of WSL but I am not sure.

Here’s the WSL version:

WSL version: 2.2.4.0
Kernel version: 5.15.153.1-2
WSLg version: 1.0.61
MSRDC version: 1.2.5326
Direct3D version: 1.611.1-81528511
DXCore version: 10.0.26091.1-240325-1447.ge-release
Windows version: 10.0.19045.4894

Do you have any ideas?