Page 76 / 110
Scroll up to view Page 71 - 75
TW-EA510 version 4 ADSL2+, WLAN 802.11g, VPN, Firewall Router
Chapter 4: Configuration
75
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
Page 77 / 110
TW-EA510 version 4 ADSL2+, WLAN 802.11g, VPN, Firewall Router
Chapter 4: Configuration
76
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
Page 78 / 110
TW-EA510 version 4 ADSL2+, WLAN 802.11g, VPN, Firewall Router
Chapter 4: Configuration
77
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
Page 79 / 110
TW-EA510 version 4 ADSL2+, WLAN 802.11g, VPN, Firewall Router
Chapter 4: Configuration
78
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.
Page 80 / 110
TW-EA510 version 4 ADSL2+, WLAN 802.11g, VPN, Firewall Router
Chapter 4: Configuration
79
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)
19216811.live