GajShield Knowledge Base

All the documents you require to help you configure and manage GajShield firewalls.

How to configure L2TP over IPSec on your firewall

This section contains information about the parameters required to define the VPN tunnel.

Default Policy will by default be pre-configured with factory settings. You’ll have to create a new policy for L2TP.

  1. L2TP VPN Policy Settings

Go to VPN --> IPSec --> Policy

Note- Policy configuration is required to setup a L2TP tunnel. You can configure L2TP with both ISPs

  1. L2TP VPN Tunnel Configuration

Go to VPN --> IPSec --> Tunnels

Note- You’ll have to select L2TP in VPN type option since the configuration is L2TP over IPSec.

3.         L2TP Configuration

Go to VPN -> L2TP -> L2TP Options

Specify the following fields:

Server IP: Public IP of Firewall.

IP Range: When Users connect through VPN, that time users get the IP address from the above defined range.

Local IP: Firewall local LAN IP.

4.         Create a VPN User

Go to VPN -> Local User -> VPN Users

You can create a new user or modify an existing VPN user

5.         Rules for L2TP VPN

Go to Firewalls -> Policies -> Rules

Configure the 3 rules as specified above.

NOTE: If a user has 2 ISPs, he will have to configure 2 tunnels, second time with the second ISP as the destination. (If user wants to configure L2TP with both the ISPs)

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