Connecting Ubuntu Desktop 22.04 to a Meraki VPN

Add repository for installing network-manager-l2tp

sudo add-apt-repository ppa:nm-l2tp/network-manager-l2tp
sudo apt-get update 

Install network-manager-l2tp

sudo apt-get install network-manager-l2tp
sudo apt-get install network-manager-l2tp-gnome

Configure the network

• Go to Settings > Network.
• Press the + to add a VPN
• Select “Layer 2 Tunneling Protocol”
• Add Gateway, and username and password (optional).
• Click “IPsec Settings…”
  
• “Enable IPsec tunnel to L2TP host” 
• Add your preshared key.
• Set Phase1 Algorithms to “3des-sha1-modp1024”
• Set Phase2 Algorithms to “3des-sha1”
• “Enforce UDP capsulation” are activated.
• Everything else should be unticked.
• Apply the settings

Turn off the xl2tpd service

sudo systemctl stop xl2tpd

and prevent it from starting again on reboot

sudo systemctl disable xl2tpd.

You should now be able to connect to the VPN.