Cisco Systems UBR900 specifications Configuring Ethernet and Cable Access Router Interfaces

Configuring Ethernet and Cable Access Router Interfaces

•Exit global configuration mode and attempt to reenter it using the new enable password:

cisco# exit

cisco con0 is now available Press RETURN to get started. cisco> enable

Password: guessme cisco#

Configuration, Verification, and Troubleshooting Tips

If you are having trouble:

•Make sure Caps Lock is off.

•Make sure you entered the correct passwords. Passwords are case sensitive.

Configuring Ethernet and Cable Access Router Interfaces

To assign an IP address to the Ethernet or cable access router interface so that it can be recognized as a device on the Ethernet LAN, perform the following tasks, starting in global configuration mode:

Step	Command	Purpose
1	uBR924(config)# interface ethernet 0	Enter interface configuration mode for the Ethernet and/or
		the cable access router interface.
	or
	uBR924(config)# interface modem-cable0
	uBR924(config-if)#
2	uBR924(config-if)#ip address 172.16.1.1 255.255.255.0	Assign the appropriate IP address and subnet mask to the
		interface.
3	uBR924(config-if)# Ctrl-Z	Return to privileged EXEC mode.
	uBR924#
	%SYS-5-CONFIG_I: Configured from console by console	This message is normal and does not indicate an error.

Verifying IP Address Configuration

To verify that you have assigned the correct IP address, enter the show arp command:

uBR924# show arp
Protocol	Address	Age (min)	Hardware Addr	Type	Interface
Internet	172.16.1.1	-	0009.0613.6030	ARPA	cable-modem0
Internet	4.0.0.28	-	00e0.1ed7.524d	ARPA	Ethernet0

Configuration, Verification, and Troubleshooting Tips

If you are having trouble:

•Make sure you are using the correct IP address.

•Make sure the cable interface is not shut down. Use the show running-configcommand to check the cable interface status.

38Cisco IOS Release 12.0(7)T