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Click
SAVE SETTINGS
to save the configuration.
RIP
RIP
(Routing Information Protocol)
sends routing-update messages at
regular intervals and when the network topology changes. When a
router receives a routing update that includes changes to an entry, it
updates its routing table to reflect the new route. RIP routers
maintain only the best route to a destination. After updating its
routing table, the router immediately begins transmitting routing
updates to inform other network routers of the change.
Subnet Mask
Enter the subnet mask of the remote network for which to
set a static route.
Gateway
Enter the WAN IP address of the gateway to the remote
network.
Parameter
Description
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Routing Table
Parameter
Description
General RIP Parameters
RIP mode
Globally enables or disables RIP.
Auto summary
If Auto summary is disabled, then RIP packets will
include sub-network information from all sub-
networks connected to the router. If enabled, this
sub-network information will be summarized to one
piece of information covering all sub-networks.
Table of current Interface RIP parameter
Interface
The WAN interface to be configured.
Operation Mode
Disable: RIP disabled on this interface.
Enable: RIP enabled on this interface.
Silent: Listens for route broadcasts and updates its
route table. It does not participate in sending route
broadcasts.
Version
Sets the RIP version to use on this interface.
Poison Reverse
A method for preventing loops that would cause
endless retransmission of data traffic.
Authentication Required
•
None: No authentication.
•
Password: A password authentication key is
included in the packet. If this does not match
what is expected, the packet will be discarded.
This method provides very little security as it is
possible to learn the authentication key by
watching RIP packets.
Authentication Code
Password Authentication key.
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Firewall
The Wireless 54Mbps ADSL Router’s firewall inspects packets at the
application layer, maintains TCP and UDP session information,
including time-outs and the number of active sessions, and provides
the ability to detect and prevent certain types of network attacks.
Network attacks that deny access to a network device are called
Denial-of-Service (DoS) attacks. DoS attacks are aimed at devices
Parameter
Description
Flags
Indicates the route status:
C = Direct connection on the same subnet.
S = Static route.
R = RIP (Routing Information Protocol) assigned route.
I = ICMP (Internet Control Message Protocol) Redirect route.
Network
Address
Destination IP address.
Netmask
The subnetwork associated with the destination.
This is a template that identifies the address bits in the destination
address used for routing to specific subnets. Each bit that corresponds
to a “1” is part of the subnet mask number; each bit that corresponds to
“0” is part of the host number.
Gateway
The IP address of the router at the next hop to which frames are
forwarded.
Interface
The local interface through which the next hop of this route is reached.
Metric
When a router receives a routing update that contains a new or changed
destination network entry, the router adds 1 to the metric value indicated
in the update and enters the network in the routing table.
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and networks with a connection to the Internet. Their goal is not to
steal information, but to disable a device or network so users no
longer have access to network resources.
The Wireless 54Mbps ADSL Router firewall function protects against
the following DoS attacks: IP Spoofing, Land Attack, Ping of Death, IP
with zero length, Smurf Attack, UDP port loopback, Snork Attack, TCP
null scan, and TCP SYN flooding.
The firewall does not significantly affect system performance, so we
advise leaving it enabled to protect your network. Select
Enable
and
click
SAVE SETTINGS
to open the Firewall submenus.
Access Control
Access Control allows users to define the outgoing traffic permitted
or not permitted through the WAN interface. The default is to permit
all outgoing traffic.
The following items are on the Access Control screen:
Parameter
Description
Enable Filtering Function
Click
Yes
to turn on the filtering function.
Normal Filtering Table
Displays the IP address (or an IP address range) filtering
table.
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To add the PC to the filtering table:
1.
Click
Add PC
on the Access Control screen.
2.
Define the appropriate settings for client PC services.
3.
Click
OK
and then click
SAVE SETTINGS
to save your settings.
MAC Filter
The Wireless 54Mbps ADSL Router can also limit the network access
based on the MAC address. The MAC Filtering Table allows the
Wireless 54Mbps ADSL Router to enter up to 32 MAC addresses that
are allowed access to the WAN port.

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