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3.

Select your WAN port configuration:

•

Select the Auto-Rollover radio button and designate the rollover port from the pull-down

menu. Auto-Rollover is available only if you have connected and configured both an

ADSL ISP and an Ethernet ISP connection.

•

Select the Use Dedicated WAN port radio button and select the dedicated port from the

pull-down menu if you have configured and are connected to only one port.

4.

Select the WAN Failure Detection Method, if Auto-Rollover is selected:

•

Select DNS lookup using this DNS Server and enter the server address (default), or

•

Select the Ping to this IP address and enter the ping address.

Once a rollover occurs, when the primary port is restored, the router will automatically switch

back to the designated primary port.

Figure 2-9

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The default time to roll over after the primary WAN interface fails is 2 minutes (e.g., a 30-

second minimum test period, times a minimum of four tests).

Configuring Dynamic DNS (If Needed)

If your network has a permanently assigned (static or fixed) IP address, you can register a domain

name and have that name linked with your IP address by public Domain Name Servers (DNS).

However, if your Internet account uses a dynamically assigned IP address, you will not know in

advance what your IP address will be, and the address can change frequently. In this case, you can

use a commercial dynamic DNS service, which allows you to register an extension to its domain,

and resolves DNS requests for the resulting FQDN to your frequently-changing IP address.

For rollover mode, you will need a fully qualified domain name (FQDN) to implement features

such as exposed hosts and virtual private networks regardless of whether you have a fixed or

dynamic IP address.

The gateway contains a client that can connect to a dynamic DNS service provider. To use this

feature, you must select a service provider and obtain an account with them. After you have

configured your account information in the gateway, whenever your ISP-assigned IP address

changes, your gateway will automatically contact your dynamic DNS service provider, log in to

your account, and register your new IP address.

Note:

If your ISP assigns a private WAN IP address such as 192.168.x.x or 10.x.x.x, the

dynamic DNS service will not work because private addresses will not be routed

on the Internet.

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To configure Dynamic DNS:

1.

Select

Network Configuration

from the main menu and

Dynamic DNS

from the submenu.

The

Dynamic DNS Configuration

screen will display with the default None selected.

Each DNS service provider requires its own parameters (

Figure 2-11

).

Figure 2-10

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2.

Access the Web site of the Dynamic DNS service provider you have chosen and register for an

account (for example, for dyndns.org, go to

).

3.

Complete entering the Dynamic DNS screen for the service you have chosen:

a.

Select the Use a dynamic DNS service check box of the name of your dynamic DNS

Service Provider.

b.

Enter the entire FQDN that your dynamic DNS service provider gave you,

(for example,

myName.dyndns.org

).

c.

Enter the User Name and Password (or key) for logging into your dynamic DNS account.

d.

If your dynamic DNS provider allows the use of wild cards in resolving your URL, you

may select the Use wild cards check box to activate this feature.

For example, the wildcard feature will cause

*.yourhost.dyndns.org

to be aliased

to the same IP address as

yourhost.dyndns.org

4.

Click

Apply

to save your configuration.

Figure 2-11

DynDNS Service Screen

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Programming the Traffic Meter

The traffic meter is useful when an ISP charges by traffic volume over a given period of time or if

you want to look at traffic types over a period of time. The fields are described in

Table 2-2

and are

the same for both ADSL and Ethernet but are specific to each WAN interface and must be set

individually.

Figure 2-12

displays the traffic meter screen for the ADSL connection.

Figure 2-12

Traffic Meter ADSL