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Idle Time

: Auto-disconnect the VPN connection when there is no activity on the connection for a

predetermined period of time. 0 means this connection is always on.

Click

Apply

button to apply your changes.

Example: Configuring a PPTP LAN-to-LAN VPN Connection

The branch office establishes a PPTP VPN tunnel with head office to connect two private networks over

the Internet. The routers are installed in the head office and branch office accordingly.

Both office LAN networks

MUST in different subnet

with LAN to LAN

application.

Attention

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Chapter 4: Configuration

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Configuring PPTP VPN in the Head Office

The IP address 192.168.0.201 will be assigned to the router located in the branch office. Please make

sure this IP is not used in the head office LAN.

Item

Function

Description

1

Connection Name

HeadOffice

Given a name of PPTP connection

Dial in

Check Dial in

2

Private IP Address

Assigned to

Dialing User

192.168.0.200

IP address assigned to branch office network

Peer Network IP

192.168.0.0

Branch office network

3

Netmask

255.255.255.0

Username

username

4

Password

123456

Input username & password to authenticate branch

office network

Auth.Type

Chap(Auto)

Data Encryption

Auto

Key Length

Auto

5

Mode

stateful

Keep as default value in most of the cases, PPTP

server & client will determine the value automatically.

Refer to manual for details if you want to change the

setting.

6

Idle Time

0

The connection will be disconnected when there Is no

traffic in a predefined period of time.

Idle time 0 means

the connection is always on.

1

4

3

2

5

6

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Configuring PPTP VPN in the Branch Office

The IP address 69.1.121.30 is the

Public IP

address of the router located in head office. If you

registered the DDNS (please refer to the

DDNS

section of this manual), you can also use the domain

name instead of the IP address to reach the router.

Item

Function

Description

1

Connection Name

BranchOffice

Given a name of PPTP connection

Dial out

Check Dial out

2

Server IP Address

(or Domain name )

69.121.1.33

IP address of the head office router (in WAN side)

Peer Network IP

192.168.0.0

3

Netmask

255.255.255.0

Head office network

Username

username

4

Password

123456

Input username & password to authenticate branch

office network

Auth.Type

Chap(Auto)

Data Encryption

Auto

Key Length

Auto

5

Mode

stateful

Keep as default value in most of the cases, PPTP

server & client will determine the value automatically.

Refer to manual for details if you want to change the

setting.

6

Idle Time

0

The connection will be disconnected when there Is no

traffic in a predefined period of time.

Idle time 0 means

the connection is always on.

1

4

3

2

5

6

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QoS (Quality of Service)

QoS function helps you to control your network traffic for each application from LAN (Ethernet and/or

Wireless) to WAN (Internet).

It facilitates you to control the different quality and speed of through put for

each application when the system is running with full loading of upstream.

Here are the items within the

QoS

section:

Prioritization

and

Outbound / Inbound IP Throttling

(bandwidth management).

Prioritization

There are three priority settings to be provided in the Router:

±

High

±

Normal

(The default is normal priority for all of traffic without setting)

±

Low

And the balances of utilization for each priority are High (60%), Normal (30%) and Low (10%).

Application

: A user-define description to identify this new policy/application.

Time Schedule

: Scheduling your prioritization policy.

Priority

: The priority given to each policy/application. Its default setting is set to High; you may adjust

this setting to fit your policy/application.

Protocol

: The name of supported protocol.

Source Port

: The source port of packets to be monitored.

Click Clear

You can click

Clear

to delete the existing Application.

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Destination Port

: The destination port of packets to be monitored.

Source IP Address Range

: The source IP address or range of packets to be monitored.

Destination IP Address Range

: The destination IP address or range of packets to be monitored.

DSCP Marking

: Differentiated Services Code Point (DSCP), it is the first 6 bits in the ToS byte. DSCP

Marking allows users to classify traffic based on DSCP value and send packets to next Router.

See

Table 4. Here is the DSCP Mapping Table:

Note:

To be sure the router(s) in the backbones network have the capability in executing and checking the DSCP

through-out the QoS network.

Table 4: DSCP Mapping Table

DSCP Mapping Table

(Wireless) ADSL Router

Standard DSCP

Disabled

None

Best Effort

Best Effort (000000)

Premium

Express Forwarding (101110)

Gold service (L)

Class 1, Gold (001010)

Gold service (M)

Class 1, Silver (001100)

Gold service (H)

Class 1, Bronze (001110)

Silver service (L)

Class 2, Gold (010010)

Silver service (M)

Class 2, Silver (010100)

Silver service (H)

Class 2, Bronze (010110)

Bronze service (L)

Class 3, Gold (011010)

Bronze service (M)

Class 3, Silver (011100)

Bronze service (H)

Class 3, Bronze (011110)