Cisco Systems 2.5 Connection: Ethernet for Routing

Chapter6 Edit Interface/Connection
Connection: Ethernet for Routing
6-6
Cisco Router and Security Device Manager 2.5 User’s Guide
OL-4015-12
•Create a new dynamic DNS method.
Click the drop-down menu and choose to create a new dynamic DNS method.
To clear an associated dynamic DNS method from the interface, choose None
from the drop-down menu.
Connection: Ethernet for Routing
This dialog box contains the following fields if you chose Ethernet for Routing
in the Configure list.
IP Address
Enter an IP address and subnet mask in the IP Address fields. This address will be
the source IP address for traffic originating from this interface, and the destination
IP address for traffic destined for hosts connected to this interface.
DHCP Relay
Click to enable the router to act as a DHCP relay. A device acting as a DHCP relay
forwards DHCP requests to a DHCP server. When a device needs to have an IP
address dynamically assigned, it broadcasts a DHCP request. A DHCP server
replies to this request with an IP address. You can have a maximum of one DHCP
relay or one DHCP server per subnetwork.
Note If the router was configured to be a DHCP relay and to have more than one remote
DHCP server IP address, these fields are disabled.
IP Address of Remote DHCP Server
Enter the IP address of the DHCP server that will provide addresses to devices on
the LAN.
Dynamic DNS
Enable dynamic DNS if you want to update your DNS servers automatically
whenever the WAN interface IP address changes.