Apps Robustel L2TP App User Guide

Apps Robustel L2TP App

Revision History

Updates between document versions are cumulative. Therefore, the latest document version contains all updates made to previous versions.

December 25, 2021

|

2.0.0

|

v.1.0.2

| Revised the company name

Deleted the document status: Confidential

Chapter 1

Overview

In computer networking, L2TP (Layer 2 Tunneling Protocol) is a tunneling protocol used to support virtual private networks (VPNs) or as part of the delivery of services by ISPs. It does not provide any encryption or confidentiality by itself. Rather, it relies on an encryption protocol that it passes within the tunnel to provide privacy
L2TP is an App that needs to install into the router in the System->App Center unit.

Chapter 2

App Installation

Installation

Path： System- >App

1. Please place L2TP App .rpk file (e.g. r2000-l2tp-2.0.0.rpk) into a free disk of PC. And then log in the router configuration page, go to System->App as the following screenshot show.
2. Click the “Choose File” button, select the L2TP App .rpk file from the PC, then click the “Install” button of the router configuration page.
3. When the rate of installation progress reach 100%, the system will pop up a reboot router reminder window. Please click “OK” to make router reboot.
4. After the router power on again, log in the configuration page, L2TP will be included in App Center’s “Installed Apps” list, and the function configuration will display in the VPN part.

Uninstallation

Path： System- >App Center

1. Go to “Installed Apps”, find L2TP App, and then click.
2. Click “OK” in the router reboot reminder pop-up window. When the router finish restarting, L2TP had been uninstalled.

Chapter 3

Parameters Description

L2TP Server

Item| Description| Default
Enable L2TP Server| Tick to enable L2TP server.| Disable
Username| Set the username which will assign to L2TP client.| Null
Password| Set the password which will assign to L2TP client.| Null
Local IP| Set the IP address of L2TP server.| 10.0.0.1
Start IP| Set the IP pool start IP address which will assign to the L2TP clients.| 10.0.0.2
L2TP Server

Item| Description| Default
End IP| Set the IP pool end IP address which will assign to the L2TP clients.| 10.0.0.100
Tunnel Secrets| Enter the tunnel secret which will provide to L2TP client.| Null

Authentication

| Select from “PAP”, “CHAP”, “MS-CHAP v1” and “MS-CHAP v2”.

L2TP client need to select the same authentication method based on this server’s authentication method.

| ****

CHAP

Port| Set the Port number of the L2TP server.| Null

Enable NAT

| Click to enable NAT feature of L2TP. The remote L2TP client’s source IP

will be disguised before accessing router L2TP server

| ****

OFF

Expert Options

| You can enter some other PPP initialization strings in this field. Each

string can be separated by a space.

| noccp

nobsdcomp

Remote Subnet @

Static Route

| Enter the remote peer’s private IP address or remote subnet’s

gateways address.

| ****

Null

Remote Subnet Mask

@ Static Route

| ****

Enter the remote peer’s subnet mask.

| ****

Null

Client IP @Static Route

| Specifying the L2TP client IP address.

Empty means anywhere.

| ****

Null

Click the “+” symbol to add an L2TP client. The max tunnel accounts are 3 .

L2TP Client

L2TP Client

Item| Description| Default
Server Address| Enter your L2TP server’s public IP or domain name.| Null
Username| Enter the username which was provided by your L2TP server.| Null
Password| Enter the password which was provided by your L2TP server.| Null

Authentication

| Select from “Auto”, “PAP”, “CHAP”, “MS-CHAP v1” and “MS-CHAP v2”. You need to select the corresponding authentication method based on the server’s authentication method. When you select “Auto”, router will auto

select the correct method based on server.

|

Disable

Tunnel Secrets| Enter L2TP tunnel secret in this item.| Null
Port| Set the Port number of the L2TP client.| Null

Enable NAT

| Click to enable NAT feature of L2TP. The source IP address of host Behind

R3000 will be disguised before accessing the remote L2TP server.

|

Disable

All traffic via this

interface

| After click to enable this feature, all data traffic will be sent via L2TP

tunnel.

|

Disable

Remote Subnet| Enter L2TP remote Protected subnet’s address.| Null
Remote Subnet Mask| Enter L2TPremote Protected subnet’s mask.| Null

Expert Options

| You can enter some other PPP initialization strings in this field. Each string

can be separated by a space.

| noccp

nobsdcomp

Go to Status to check the L2TP connection status

Guangzhou Robustel Co., Ltd.

• Add: 501, Building 2, No. 63, Yong’an Avenue, Huangpu District, Guangzhou, China 510660.
• Tel: 86-20-82321505
• Email: support@robustel.com.
• Web: www.robustel.com.

References

• 4G/LTE/5G/Cellular Routers, Gateways and Modems for Industrial IoT - Robustel

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