DrayTek Vigor 2830 Router Manual PDF (Setup & Configuration Guide)

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Triple DES (3DES), and AES.

Local ID -

Specify a local ID to be used for Dial-in setting in

the LAN-to-LAN Profile setup. This item is optional and can

be used only in IKE aggressive mode.

4.10.8 LAN to LAN

Here you can manage LAN-to-LAN connections by maintaining a table of connection profiles.

You may set parameters including specified connection direction (dial-in or dial-out),

connection peer ID, connection type (VPN connection - including PPTP, IPSec Tunnel, and

L2TP by itself or over IPSec) and corresponding security methods, etc.

The router supports up to 32 VPN tunnels simultaneously. The following figure shows the

summary table.

Set to Factory Default

Click to clear all indexes.

Name

Indicate the name of the LAN-to-LAN profile. The

symbol

???

represents that the profile is empty.

Status

Indicate the status of individual profiles. The symbol V and X

represent the profile to be active and inactive, respectively.

Click each index to edit each profile and you will get the following page. Each LAN-to-LAN

profile includes 4 subgroups. If the fields gray out, it means you may leave it untouched. The

following explanations will guide you to fill all the necessary fields.

For the web page is too long, we divide the page into several sections for explanation.

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Profile Name

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

Enable this profile

Check here to activate this profile.

VPN Dial-Out Through

Use the drop down menu to choose a proper WAN interface for

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

WAN1 /WAN2 /WAN3 First

- While connecting, the router

will use WAN1 /WAN2 /WAN3 as the first channel for VPN

connection. If WAN1 fails, the router will use another WAN

interface instead.

WAN1 /WAN2 /WAN3 Only

- While connecting, the router

will use WAN1 /WAN2 /WAN3 as the only channel for VPN

connection.

Netbios Naming Packet

Pass

– click it to have an inquiry for data transmission between

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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 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).

Type of Server I am

calling

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 IPSec Policy -

Build a L2TP VPN connection

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

IPSec. Select from below:

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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

apply MD5 or SHA-1 authentication algorithm.

Advanced

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

Gateway, etc.

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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.

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.

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