Ch
apter 4: We
b
C
on
fi
gurat
i
on
43
Version:
It incorporates the RIP information when
receiving and broadcasting the RIP packets.
From the radio buttons, select a RIP version
to be accepted, 1, 2 or both.
Operation:
There are two modes for you to choose,
Active and Passive. Select Active for
transmitting and receiving data, or select
Passive for receiving data only.
Enabled:
Click Enabled to enable the RIP function on
different interface. Otherwise, disable this
function.
Click Apply to invoke the settings set here.
DNS Server
If Enable Automatic Assigned DNS checkbox is selected, this router will accept the first received
DNS assignment from one of the PPPoA, PPPoE or MER/DHCP enabled PVC(s) during the
connection establishment. If the checkbox is not selected, it is necessary for you to enter the primary
and optional secondary DNS server IP addresses. After type in the address, click Apply button to save
it and invoke it.
Enable Automatic Assigned DNS:
Check this box to enable this function, or
uncheck this box to disable it.
Primary DNS server:
Type in your primary DNS server.
Secondary DNS server:
Type in the secondary DNS server.
If you are satisfied the settings, click Apply.
NAT - Virtual Servers
The Router implements NAT to let your entire local network appear as a single machine to the
Internet. The typical situation is that you have local servers for different services and you want to
make them publicly accessible. With NAT applied, it will translate the internal IP addresses of these
servers to a single IP address that is unique on the Internet. NAT function not only eliminates the need
for multiple public IP addresses but also provides a measure of security for your LAN.
When the router receives an incoming IP packet requesting for access to your local server, the router
will recognize the service type according to the port number in this packet (e.g., port 80 indicates
HTTP service and port 21 indicates FTP service). By specifying the port number, you tell the router
which service should be forwarded to the local IP address you specify.
After you setting the virtual server you should modify the filter rule whichever port and service you
set on virtual server. Because the firewall has protect the route by filter rule so that you should update
the filter rule after you set up virtual server.
Virtual Server allows you to make servers on your LAN accessible to Internet users. Normally,
Internet users would not be able to access a server on your LAN because:
Your server does not have a valid external IP Address.
Attempts to connect to devices on your LAN are blocked by the firewall in this device.
The Virtual Server feature solves these problems and allows Internet users to connect to your servers,