systemd-networkd configuration example

This is the config that is used on ZOTAN Networks (AS4242422341). Full network configuration available on my Git (dn42) or alternatively my Git (clear)

Configuration

loopback device (lo.network)

[Match]
Name=lo

[Network]
Address=fdff:b02d:2ef7::2/128

wireguard netdev (dn42p1.netdev)

[NetDev]
Name = dn42p1
Kind = wireguard
Description = WireGuard

[WireGuard]
ListenPort = 42421
PrivateKeyFile = /etc/wireguard/private.key

[WireGuardPeer]
PublicKey = <peer wg pubkey>
Endpoint = <peer wg endpoint>:<peer wg port>
AllowedIPs = 172.16.0.0/12,10.0.0.0/8,fd00::/8,fe80::/10,ff00::/8

wireguard network (dn42p1.network)

[Match]
Name = dn42p1

[Address]
Address = fe80::2342/128 # arbitrary, doesn't need to be unique for each interface
Peer = <peer tunnel linklocal address>/128

[Address]
Address = <your DN42 ipv4>/32
Peer = <peer DN42 ipv4>/32