[Interface]
Address = 10.20.30.1/32
ListenPort = 17968
PrivateKey = ---PRIVATE_KEY_INTERNAL---
PostUp = iptables -t nat -A POSTROUTING -o `ip link show | awk -F ': ' '/state UP/ {print $2}'` -j MASQUERADE
PostUp = ip rule add from `ip route | awk '/default/ {print $3; exit}'` table main
PostDown = iptables -t nat -D POSTROUTING -o `ip link show | awk -F ': ' '/state UP/ {print $2}'` -j MASQUERADE
PostDown = ip rule del from `ip route | awk '/default/ {print $3; exit}'` table main

#external node
[Peer]
PublicKey = ---PUBLIC_KEY_EXTERNAL---
AllowedIPs = 10.20.30.2/32, 0.0.0.0/0

#mobile-client node
[Peer]
PublicKey = ---PUBLIC_KEY_CLIENT_1---
AllowedIPs = 10.20.30.3/32