Draytek Vigor2920n User's Guide download pdf (Page 240)

Vigor2920 Series User’s Guide

228

L2TP with IPSec Policy - Build a L2TP VPN connection

through the Internet. You can select to use L2TP alone or with

IPSec. Select from below:

None: Do not apply the IPSec policy. Accordingly, the VPN

connection employed the L2TP without IPSec policy can be

viewed as one pure L2TP connection.

Nice to Have: Apply the IPSec policy first, if it is applicable

during negotiation. Otherwise, the dial-out VPN connection

becomes one pure L2TP connection.

Must: Specify the IPSec policy to be definitely applied on the

L2TP connection.

User Name

This field is applicable when you select, PPTP or L2TP with or

without IPSec policy above.

Password

This field is applicable when you select PPTP or L2TP with or

without IPSec policy above.

PPP Authentication

This field is applicable when you select, PPTP or L2TP with or

without IPSec policy above. PAP/CHAP is the most common

selection due to wild compatibility.

VJ compression

This field is applicable when you select PPTP or L2TP with or

without IPSec policy above. VJ Compression is used for TCP/IP

protocol header compression. Normally set to Yes to improve

bandwidth utilization.

IKE Authentication

Method

This group of fields is applicable for IPSec Tunnels and L2TP

with IPSec Policy.

Pre-Shared Key - Input 1-63 characters as pre-shared key.

Digital Signature (X.509) - Select one predefined Profiles set

in the VPN and Remote Access >>IPSec Peer Identity.

IPSec Security Method

This group of fields is a must for IPSec Tunnels and L2TP with

IPSec Policy.

Medium AH (Authentication Header) means data will be

authenticated, but not be encrypted. By default, this option is

active.

High (ESP-Encapsulating Security Payload)- means payload

(data) will be encrypted and authenticated. Select from below:

DES without Authentication -Use DES encryption algorithm

and not apply any authentication scheme.

DES with Authentication-Use DES encryption algorithm and

apply MD5 or SHA-1 authentication algorithm.

3DES without Authentication-Use triple DES encryption

algorithm and not apply any authentication scheme.

3DES with Authentication-Use triple DES encryption

algorithm and apply MD5 or SHA-1 authentication algorithm.

AES without Authentication-Use AES encryption algorithm

and not apply any authentication scheme.

AES with Authentication-Use AES encryption algorithm and

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Draytek Vigor2920n User's Guide Page 240

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