Bring up wireguard interface with wg script
This is the example script and associated config file for the vpn client. This was connecting to a vpn server hosted on the home network.
wg_acrodus_up.sh \#!/bin/bash
ip l add dev wg0 type wireguard
wg setconf wg0 wg_acrodus.conf
ip a add 10.0.0.2/32 dev wg0
ip l set dev wg0 up
wg set wg0 fwmark 51821
ip -4 rule add not fwmark 51821 table 51821 ip -4 route add 0.0.0.0/0 dev wg0 table 51821
ip -6 rule add not fwmark 51821 table 51821 ip -6 route add ::/0 dev wg0 table 51821
wg_acrodus.conf
[Interface]
PrivateKey = KMbtL28SVof35/RM9/aqFvbpuSH4PRpuzDGtfq9UhXQ=
ListenPort = 51821
fwMark = 51821
[Peer] PublicKey = cNfZAhVdRi83k35yHOF9rFeOk9KT94vvSj1ALw8GSnE= AllowedIPs = 0.0.0.0/0, 0::/0 EndPoint = vpn.acrodus.uk:51821 PersistentKeepalive = 10
A note to future Alex, wg-quick .conf files have different parameters to wg .conf files. Also remember the importance of the fwmark.