Allied Telesis AT-WR4500 manual L2TP Interface, Enable the L2TP server

AT-WR4500 Series - IEEE 802.11abgh Outdoor Wireless Routers	161
RouterOS v3 Configuration and User Guide

Now both routers can ping each other:

[admin@AT-WR4562] interface ipip> /ping 1.1.1.2

1.1.1.264 byte ping: ttl=64 time=24 ms

1.1.1.264 byte ping: ttl=64 time=19 ms

1.1.1.264 byte ping: ttl=64 time=20 ms

3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max = 19/21.0/24 ms [admin@AT-WR4562] interface ipip>

8.5L2TP Interface

8.5.1 General Information

Summary

L2TP (Layer 2 Tunnel Protocol) supports encrypted tunnels over IP. The RouterOS implementation includes support for both L2TP client and server.

General applications of L2TP tunnels include: secure router-to-router tunnels over the Internet linking (bridging) local Intranets or LANs

extending PPP user connections to a remote location (for example, to separate authentication and Internet access points for ISP)

accessing an Intranet/LAN of a company for remote (mobile) clients (employees)

Each L2TP connection is composed of a server and a client. The RouterOS may function as a server or client or, for various configurations, it may be the server for some connections and client for other connections.

Quick Setup Guide

To make a L2TP tunnel between two RouterOS routers with IP addresses 10.5.8.104 (L2TP server) and 10.1.0.172 (L2TP client), follow the next steps.

Configuration on L2TP server router:

Add a L2TP user:

[admin@L2TP-Server] ppp secret> add name=james password=pass \ \... local-address=10.0.0.1 remote-address=10.0.0.2

Enable the L2TP server

[admin@L2TP-Server] interface l2tp-server server> set enabled=yes

Configuration on L2TP client router:

Add a L2TP client:

[admin@L2TP-Client] interface l2tp-client> add user=james password=pass \ \... connect-to=10.5.8.104

Specifications

Packages required: ppp

License required: Level1 (limited to 1 tunnel) , Level3 (limited to 200 tunnels) , Level5

Submenu level: /interface l2tp-server, /interface l2tp-client

Standards and Technologies: L2TP (RFC 2661)

Hardware usage: Not significant