Mikrotik - Setting up wireguard

Wireguard is a fast, secure, versatile, and easy to set-up VPN Software which (luckily) is unclided in MikroTik's RouterOS since v7.

First, set up the router:

 [archy@MikroTik] > interface/wireguard/add comment="wireguard wan" listen-port=13231 name=wg0

Get the autogenerated public key for the wireguard interface and save it in a variable:

 [archy@stealth-falcon ~]$ gateway_publickey=$(ssh archy@gw.archyslife.lan 'interface/wireguard/print' | grep -iE 'public-key' | sed -s 's/public-key=//g' | sed -s 's/"//g' | sed -s 's/\ //g')

By default, the 'wireguard-tools' package is not installed on fedora so we have to install it:

 [archy@stealth-falcon ~]$ sudo dnf -4y --refresh install wireguard-tools

Also, ensure systemd-resolved is running:

 [archy@stealth-falcon ~]$ sudo systemctl enable --now systemd-resolved.service

Create the private and public keys:

 [archy@stealth-falcon ~]$ client_privatekey=$(wg genkey)  
 [archy@stealth-falcon ~]$ client_publickey=$(echo $client_privatekey | wg pubkey)

Now that we have generated the public and private keys (and stored them in variables in the shell session), create the configuration file on the client:

 [archy@stealth-falcon ~]$ cat << EOF | sudo tee /etc/wireguard/home.conf  
 [Interface]  
 Address = 172.31.202.10/32  
 DNS = 172.31.202.254  
 PrivateKey = $client_privatekey  
 [Peer]  
 Publickey = $gateway_publickey  
 AllowedIPs = 0.0.0.0/0  
 Endpoint = vpn.archyslife.lan:13231  
 EOF

Now add all peers to the router:

 [archy@MikroTIk] > interface/wireguard/peers/add interface=wg0 allowed-address=172.31.202.10/32 comment="archy - laptop" public-key="client_publickey_here"

From here on out, you can test your wireguard connection using 'wg-quick':

 [archy@stealth-falcon ~]$ sudo wg-quick up home

Once the tunnel is up, all your traffic should be routed through the wireguard tunnel.

Feel free to comment and / or suggest a topic.

Comments

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