Cisco Cisco IOS Software Release 12.4(9)T
Cisco PVDM2-12DM, PVDM2-24DM, and PVDM2-36DM Digital Modem Packet Voice Data Modules
How to Configure Digital Modem PVDM2s
5
Cisco IOS Release 12.4(9)T, 12.4(11)XW, and 12.4(20)T
Tasks Common to All Configurations
Complete the following tasks for all configurations of digital modem PVDM2s.
•
(required)
•
(required)
•
(required)
•
(required)
•
(required)
•
(required)
•
(optional)
•
(optional)
•
(optional)
Configuring the Loopback Interface
The loopback 0 interface is the interface that dial-in users access when dialing in to the network. Usually,
all dial-in users are assigned to a single IP subnet. This subnet can be identified with the loopback 0
interface, a logical interface whose network number can be borrowed by each asynchronous dial-in
interface.
all dial-in users are assigned to a single IP subnet. This subnet can be identified with the loopback 0
interface, a logical interface whose network number can be borrowed by each asynchronous dial-in
interface.
To configure the loopback 0 interface, perform the following tasks, beginning in global configuration mode:
SUMMARY STEPS
1.
interface Loopback number
2.
ip address ip-address ip-address mask
DETAILED STEPS
Command or Action
Purpose
Step 1
interface Loopback
number
Example:
Router(config)# loopback 0
Selects the loopback 0 interface.
Step 2
ip address
ip-address ip-address mask
Example:
Router(config-if)# ip address 127.0.0.1
255.255.0.0
Assigns an IP address and subnet mask to the loopback 0
interface.
interface.