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TW-EA1000 Wireless ADSL Firewall Router
27
For the Remote Access Application, please refer to the figure below.
Connection Name:
Give a name for this connection.
Via IP Interface:
Select an interface that will establish this connection.
Type:
Check
Dial Out
to be a client, check
Dial In
to be a server. When this network router
acts as a client, please input the remote
server IP
address to establish a connection. When this
network router acts as a server, please input the
local IP
address and a
remote IP
address
assigning it to a dial in PPTP client.
Local Interface:
Select an interface that will use this connection to communicate with the
remote site.
Username:
Enter the username provided by your ISP. You can input up to
128
alphanumeric
characters (case sensitive).
Password:
Enter the password provided by your ISP. You can input up to
128
alphanumeric
characters (case sensitive).
PPP Authentication Type:
Default is
Auto
.
Data Encryption:
The data can be encrypted by MPPE algorithm. Default is
Auto,
it is
negotiated when establishing a connection.
Key Length:
The data can be encrypted by MPPE algorithm with 40 bits or 128 bits. Default is
Auto
, it is negotiated when establishing a connection.
Mode:
You may select
Stateful
or
Stateless
mode. The key will be changed in each 256
packets when you select Stateful mode. If you select Stateless mode, the key will be changed in
each packet.
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Chapter 3 Configuration
28
Idle Time
: Auto-disconnect the broadband firewall gateway when there is no activity on the
line for a predetermined period of time. 0 means this connection is always on.
Click
Apply
after setting.
Connection Name:
Give a name for this connection.
Via IP Interface:
Select an interface that will establish this connection.
Type:
Check
Dial Out
to be a client, check
Dial In
to be a server. When this network router
acts as a client, please input the remote
server IP
address to establish a connection. When this
network router acts as a server, please input the
local IP
address and a
remote IP
address
assigning it to a dial in PPTP client.
Local Interface:
Select an interface that will use this connection to communicate with the
remote site.
Peer Network IP:
Enter Peer network IP address.
Netmask:
Enter the subnet mask of peer network based on above Peer Network IP setting.
Username:
Enter the username provided by your ISP. You can input up to
128
alphanumeric
characters (case sensitive).
Password:
Enter the password provided by your ISP. You can input up to
128
alphanumeric
characters (case sensitive).
PPP Authentication Type:
Default is
Auto
.
Data Encryption:
The data can be encrypted by MPPE algorithm. Default is
Auto,
it is
negotiated when establishing a connection.
Key Length:
The data can be encrypted by MPPE algorithm with 40 bits or 128 bits. Default is
Auto
, it is negotiated when establish a connection.
Mode:
You may select
Stateful
or
Stateless
mode. The key will be changed in each 256
packets when you select Stateful mode. If you select Stateless mode, the key will be changed in
each packet.
Idle Time
: Auto-disconnect the broadband firewall gateway when there is no activity on the
line for a predetermined period of time. 0 means this connection is always on.
Click
Apply
after setting.
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TW-EA1000 Wireless ADSL Firewall Router
29
3.4.3.6 Virtual Server
When you click Virtual Server, you get the following figure.
Being a natural Internet firewall, this network router protects your network from being accessed
by outside users. When it needs to allow outside users to access internal servers, e.g. Web
server, FTP server, E-mail server or News server, this product can act as a virtual server. You
can set up a local server with specific port number that stands for the service, e.g. Web (80),
FTP (21), Telnet (23), SMTP (25), POP3 (110), When an incoming access request to the router
for specified port is received, it will be forwarded to the corresponding internal server.
For example, if you set the Service Port number 80 (Web) to be mapped to the IP Address
192.168.0.2, then all the http requests from outside users will be forwarded to the local server
with IP address of 192.168.0.2. If the port is not listed as a predefined application, you need to
add it manually.
DMZ:
Regarding the DMZ Host, it is a local computer exposed to the Internet. Therefore, an
incoming packet will be checked by the Firewall and NAT algorithms, then passed to the DMZ
host when a packet is not sent by a hacker and not limited by the virtual server list.
If you have disabled the NAT option in the WAN-ISP section, this Virtual Server
function will hence be invalid.
If the DHCP server option is enabled, you have to be very careful in assigning the
IP addresses of the virtual servers in order to avoid conflicts. The easy way is that
the IP address assigned to each virtual server should not fall into the range of IP
addresses that are to be issued by the DHCP server. You configure the virtual
server IP address manually, but it is still in the same subnet with the router.
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Chapter 3 Configuration
30
3.4.3.7 Advanced
There are two items under the Advanced section, Static Routing and Dynamic DNS. When you
click
Static Routing
and then click
Create IP V4Route
to get the below figure to add a routing
table.
Destination:
Enter the destination subnet IP.
Gateway:
Enter the gateway IP address which the packet is forwarded to.
Netmask:
Subnet mask of destination IP addresses based on above destination subnet IP.
Cost:
This is the same meaning as Hop. Usually, leave it as 1.
Interface :
Enter the interface which the packet is forwarded to.
Click
Dynamic DNS
to get the below figure then check the “Enable” button to access the
Dynamic DNS service.
The Dynamic DNS service allows you to alias a dynamic IP address to a static hostname. This
dynamic IP address is the WAN IP address. For example, to use the service, you must first apply
an account from this free Web server http://www.dyndns.org/
. There are more than 5 DDNS
servers supported.
Dynamic DNS:
Select the registered DDNS server.
Domain Name, Username and Password:
Enter the registered domain name, username and
password.
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TW-EA1000 Wireless ADSL Firewall Router
31
Period:
Set the time period for Router to exchange information with DDNS server. In addition
to update periodically according to this period setting, Router will take the same action
automatically whenever the assigned IP is changed.
3.4.4 Save Configuration to Flash
After configuring this network router, you have to save all of the configuration parameters to
FLASH.

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