L2TP Client: OpenWRT with Policy Based Routing

This guide was kindly written by Alan T on 04/04/2024

1. Configure LAN interface

Click Add new interface, select Static address then enter

Device br-lan

IPv4 address 10.0.0.1 or 192.xxx.x.x

IPv4 netmask 255.255.255.0

Firewall Settings lan

DHCP Sever On

Click Save & Apply, then disconnect your WLAN connection and rejoin, or refresh IP address.

2. Set up WAN Connection

This is depended on your WAN connection; however you will most likely need to connect to it wirelessly in Client mode :like myself, or create a DHCP client on eth0.2 (VLAN 2) interface which should default to untagging VLAN 2 on the WAN :interface.

In most situations you should probably enable Masquerading on the WAN interface (default) which is found under Firewall.

3. Create LAN Access Point(s) & add security

As above, in my case I have set up MyNetwork_5Ghz & MyNetwork_2Ghz, and have secured with a Passphrase. BOTH :interfaces are bound to the default br-lan interface which defaults to VLAN 1 (eth0.1) which untags ALL LAN ports.

You can change this as you wish.

4. Download and Install xl2tpd

Go into Software, click Update lists, and then search for xl2tpd, and then click to install.

In my case I have already installed it, however a reboot will be required one you have installed it.