User guide

030-300564 Rev A 97 August 2009
User Guide ProLine G90
(
Models 6100
,
6110
)
Subnet Mask/ Host Route Displays the following:
• If the Route is a network route, Subnet Mask is used to specify the subnet
address.
• If the Route is a Host route, then the Host Route check box is used.
Gateway/LAN Gateway
Address
Click this drop-down menu to select the interface to use for sending the packet, if it
matches this route. Only active gateways can be used to create a static route.
Metric Displays the RIP metric to be assigned to this route if/when it is advertised using
RIP. The metric is equivalent to the RIP metric 0-15; it is used to differentiate routes
with the same address and mask. Lower metrics are preferred. The RIP column
indicates whether a static route should be advertised via RIP.
RIP Config Click this drop-down menu to select whether or not to advertise the static route,
using RIP. (RIP must also be enabled before the route will be advertised.)
• NEVER
• ALWAYS
Save to Modem If checked, then the route will be made permanent by saving it to flash memory. If
not checked, the route will disappear the next time the modem restarts.
add Click this button to add a newly created route.
13.4.7 Dynamic DNS
The following screen will appear if you select Advanced > WAN > Dynamic DNS from the main menu. Dynamic
DNS allows a dynamic IP address to be aliased to a static hostname. For example, consider a situation where you’re
hosting a server on your modem’s LAN and your modem receives a dynamic WAN IP address from your ISP.
Without Dynamic DNS, if your WAN IP address changes, external users will have no way of knowing what your new
WAN IP address is, and therefore, will not be able to access your server.
To address this situation, a number of companies (dynamic DNS ISPs) offer a service through which you may obtain
a URL hostname for the server that you’re hosting. This hostname is associated with the WAN IP address of your
modem. The modem incorporates an “update client” that monitors for WAN IP address changes. If a change is
detected, the update client notifies the dynamic DNS service provider of your new IP address. The dynamic DNS ISP
then updates your DNS record by associating your new IP address to your hostname. Thus, external users access your
server using your hostname and are unaffected by a change in your IP address.
If you change the settings in this screen, click save and then OK. If you click discard, the screen will return to its
previous settings.