Specifications

Basic Router Configuration
Configuring Command-Line Access
9
Cisco 3900 Series, 2900 Series, and 1900 Series Integrated Services Routers Software
OL-21850-01
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
Another way to verify the loopback interface is to ping it:
Router# ping 200.200.100.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 200.200.100.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
Configuring Command-Line Access
To configure parameters to control access to the router, follow these steps, beginning in global
configuration mode.
SUMMARY STEPS
1. line [aux | console | tty | vty] line-number
2. password password
3. login
4. exec-timeout minutes [seconds]
5. line [aux | console | tty | vty] line-number
6. password password
7. login
8. end
DETAILED STEPS
Command Purpose
Step 1
line [aux | console | tty | vty] line-number
Example:
Router(config)# line console 0
Router(config-line)#
Enters line configuration mode, and specifies the
type of line.
This example specifies a console terminal for
access.
Step 2
password password
Example:
Router(config)# password 5dr4Hepw3
Router(config-line)#
Specifies a unique password for the console
terminal line.