Here's my configuration, working fine with my Android 9 Phone
server.conf
root@pandora:~# cat /etc/wireguard/wg0.conf
[Interface]
# specify generated private key for server
PrivateKey = <sekret>
# IP address for VPN interface
Address = 172.16.100.1/32, fd42:42:42::1/64
MTU = 1420
# UDP port WireGuard server listens
ListenPort = 51820
# possible to set any commands after WireGuard starts/stops
# set routing rules like follows to access to local network via VPN session
PostUp = iptables -A FORWARD -i wg0 -j ACCEPT; iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE; ip6tables -A FORWARD -i wg0 -j ACCEPT; ip6tables -t nat -A POSTROUTING -o eth0 -j MASQUERADE;
PostDown = iptables -D FORWARD -i wg0 -j ACCEPT; iptables -t nat -D POSTROUTING -o eth0 -j MASQUERADE; ip6tables -D FORWARD -i wg0 -j ACCEPT; ip6tables -t nat -D POSTROUTING -o eth0 -j MASQUERADE;
[Peer]
# REDMI
# specify public key for client
PublicKey = <sekret>
# clients' VPN IP addresses you allow to connect
# possible to specify subnet ⇒ [172.16.100.0/24]
AllowedIPs = 172.16.100.6/32, fd42:42:42::6/128
PersistentKeepalive = 25
client.conf
root@pandora:~# cat /etc/wireguard/redmi.conf
[Interface]
#Private IP Address
Address = fd42:42:42::6/128, 172.16.100.6/32
#Client's Private Key
PrivateKey = <sekret>
#Server's listening port
ListenPort = 51820
[Peer]
#Server's Public Key
PublicKey = <sekret>
AllowedIPs = ::0/0, 0.0.0.0/0
#Server's IP:port
Endpoint = woodpeckersnest.space:51820
sysctl.conf
root@pandora:~# sysctl -p
net.ipv4.ip_forward = 1
net.ipv6.conf.all.forwarding = 1
net.ipv6.conf.eth0.accept_ra = 2
Nice little piece of software; free but not open source.
Use your saved PuTTY configs in a multi tabbed window! It's just easy like that, no fuss, no complicated setup but with added options, like saving your sessions when quitting the program, so that they'll run again at next startup; auto reconnection on connection loss, with a timer, a few themes for both light and dark setups and possibility to run scripts in any or all of your SSH sessions.
If I'd have to be picky, there's one thing which doesn't work: flashing window on bell, but maybe that's expected since it's just the main window with different tabs.. Well, I think it could be improved anyway.