USRobotics USR9110 Router Manual PDF (Setup & Configuration Guide)

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Click

SAVE SETTINGS

to save the configuration.

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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