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Cisco Router and Security Device Manager 2.5 User’s Guide
OL-4015-12
Chapter6 Edit Interface/Connection
Connection: Ethernet WAN
IP Address
Choose one of the following IP address types, and enter the information in the
fields displayed. If the Ethernet connection is not using PPPoE, you will see only
the Static IP address and Dynamic options.
Static IP Address
If you choose Static IP Address, enter the IP address and subnet mask or the
network bits in the fields provided. For more information, see IP Addresses and
Subnet Masks.
Dynamic (DHCP Client)
If you choose Dynamic, the router will lease an IP address from a remote DHCP
server. Enter the name of the DHCP server from which addresses will be leased.
IP Unnumbered
Choose IP Unnumbered if you want the interface to share an IP address that is
already assigned to another interface. Then choose the interface whose IP address
this interface is to share.
Easy IP (IP Negotiated)
Choose Easy IP (IP Negotiated) if the router will obtain an IP address through
Point-to-Point Protocol/IP Control Protocol (PPP/IPCP) address negotiation.
Authentication
Click to enter CHAP/PAP authentication password informa tion.
Dynamic DNS
Enable dynamic DNS if you want to update your DNS servers automatically
whenever the WAN interface IP address changes.
Note This feature appears only if supported by the Cisco IOS release on your router.
To choose a dynamic DNS method to use, do one of the following:
•Enter the name of an existing dynamic DNS method.