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Cisco Router and Security Device Manager Version 2.2 User’s Guide
OL-4015-08
Chapter4 Edit Interface/Connection
Connection: G.SHDSL with DSL Controller
IP Address
Select how the router will obtain an IP address for this link. The fields that appear
in this area change according to the encapsulation type chosen. Your service
provider or network administrator must tell you the method the router should use
to obtain an IP address.
Static IP address
If you select Static IP address, enter the address that the interface will use, and the
subnet mask, or the network bits. Obtain this information from your service
provider or network administrator. For more information, refer to IP Addresses
and Subnet Masks.
Dynamic IP address
If you select Dynamic IP address, the interface will obtain an IP address from a
DHCP server on the network. If the DHCP server uses DHCP option 12, it sends
a host name for the router along with the IP address i t is to use. Check with your
service provider or network administrator to determine the host name sent.
IP Unnumbered
Select this option if you want the interface to share an IP address with an Ethernet
interface on the router. If you select this option, you must specify from the d rop
down list the Ethernet interface whose address you want to use.
Authentication
Click this button if you need to enter CHAP or PAP authentication information.
Dynamic DNS
Enable dynamic DNS if you want to automatically update your DNS servers
whenever the WAN interface’s IP address changes.
Note This feature appears only if supported by your Cisco server’s IOS.
To choose a dynamic DNS method to use, do one of the following:
•Enter the name of an existing dynamic DNS method.