DrayTek Vigor-2930n Router Manual PDF (Setup & Configuration Guide)

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Vigor2930 Series User’s Guide

138

Profile Name

Specify a name for the profile of the LAN-to-LAN

connection.

Enable this profile

Check here to activate this profile.

VPN Connection

Through

Use the drop down menu to choose a proper WAN interface

for this profile. This setting is useful for dial-out only.

WAN1 First

- While connecting, the router will use WAN1

as the first channel for VPN connection. If WAN1 fails, the

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router will use another WAN interface instead.

WAN1 Only

- While connecting, the router will use WAN1

as the only channel for VPN connection.

WAN2 First

- While connecting, the router will use WAN2

as the first channel for VPN connection. If WAN2 fails, the

router will use another WAN interface instead.

WAN2 Only

- While connecting, the router will use WAN2

as the only channel for VPN connection.

Netbios Naming Packet

Pass

– click it to have an inquiry for data transmission

between the hosts located on both sides of VPN Tunnel while

connecting.

Block

– When there is conflict occurred between the hosts on

both sides of VPN Tunnel in connecting, such function can

block data transmission of Netbios Naming Packet inside the

tunnel.

Multicast via VPN

Some programs might send multicast packets via VPN

connection.

Pass

– Click this button to let multicast packets pass through

the router.

Block

– This is default setting. Click this button to let

multicast packets be blocked by the router.

Call Direction

Specify the allowed call direction of this LAN-to-LAN

profile.

Both

:-initiator/responder

Dial-Out

- initiator only

Dial-In-

responder only.

Always On or Idle

Timeout

Always On-

Check to enable router always keep VPN

connection.

Idle Timeout:

The default value is 300 seconds. If the

connection has been idled over the value, the router will drop

the connection.

Enable PING to keep

alive

This function is to help the router to determine the status of

IPSec VPN connection, especially useful in the case of

abnormal VPN IPSec tunnel disruption. For details, please

refer to the note below. Check to enable the transmission of

PING packets to a specified IP address.

PING to the IP

Enter the IP address of the remote host that located at the

other-end of the VPN tunnel.

Enable PING to Keep Alive

is used to handle abnormal

IPSec VPN connection disruption. It will help to provide the

state of a VPN connection for router’s judgment of redial.

Normally, if any one of VPN peers wants to disconnect the

connection, it should follow a serial of packet exchange

procedure to inform each other. However, if the remote peer

disconnect without notice, Vigor router will by no where to

know this situation. To resolve this dilemma, by continuously

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sending PING packets to the remote host, the Vigor router can

know the true existence of this VPN connection and react

accordingly. This is independent of DPD (dead peer

detection).

ISDN

Build ISDN LAN-to-LAN connection to remote network.

You should set up Link Type and identity like User Name and

Password for the authentication of remote server. You can

further set up Callback (CBCP) function below. This feature

is useful for

S

model only.

PPTP

Build a PPTP VPN connection to the server through the

Internet. You should set the identity like User Name and

Password below for the authentication of remote server.

IPSec Tunnel

Build an IPSec VPN connection to the server through

Internet.

L2TP with …

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 ISDN, PPTP or L2TP

with or without IPSec policy above.

Password

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

with or without IPSec policy above.

PPP Authentication

This field is applicable when you select ISDN, 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 ISDN, 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

Authentication Header (AH)

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

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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 apply MD5 or SHA-1 authentication algorithm.

Advanced

Specify mode, proposal and key life of each IKE phase,

Gateway etc.

The window of advance setup is shown as below:

IKE phase 1 mode -

Select from

Main

mode and

Aggressive

mode. The ultimate outcome is to exchange security proposals

to create a protected secure channel.

Main

mode is more

secure than

Aggressive

mode since more exchanges are done

in a secure channel to set up the IPSec session. However, the

Aggressive

mode is faster. The default value in Vigor router

is Main mode.

IKE phase 1 proposal-

To propose the local available

authentication schemes and encryption algorithms to the VPN

peers, and get its feedback to find a match. Two combinations

are available for Aggressive mode and nine for

Main

mode.

We suggest you select the combination that covers the most

schemes.

IKE phase 2 proposal-

To propose the local available

algorithms to the VPN peers, and get its feedback to find a

match. Three combinations are available for both modes. We

suggest you select the combination that covers the most

algorithms.

IKE phase 1 key lifetime-

For security reason, the lifetime of

key should be defined. The default value is 28800 seconds.

You may specify a value in between 900 and 86400 seconds.

IKE phase 2 key lifetime-

For security reason, the lifetime of

key should be defined. The default value is 3600 seconds.

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You may specify a value in between 600 and 86400 seconds.

Perfect Forward Secret (PFS)-

The IKE Phase 1 key will be

reused to avoid the computation complexity in phase 2. The

default value is inactive this function.

Local ID-

In

Aggressive

mode, Local ID is on behalf of the IP

address while identity authenticating with remote VPN server.

The length of the ID is limited to 47 characters.

Index (1-15) in Schedule

Setup

You can type in four sets of time schedule for your request.

All the schedules can be set previously in

Application –

Schedule

web page and you can use the number that you have

set in that web page.

Callback Function

(for

S

models only)

The callback function provides a callback service as a part of

PPP suite only for the ISDN dial-in user. The router owner

will be charged the connection fee by the telecom.

Require Remote to Callback-

Enable this to let the router to

require the remote peer to callback for the connection

afterwards.

Provide ISDN Number to Remote-

In the case that the

remote peer requires the Vigor router to callback, the local

ISDN number will be provided to the remote peer. Check here

to allow the Vigor router to send the ISDN number to the

remote router. This feature is useful for

i

model only.

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