Cisco 4000 Series User Manual

4-17
Hardware Installation Guide for Cisco 4000 Series Integrated Services Routers
OL-32185-02
Chapter 4 Configure Initial Router Settings on Cisco 4000 Series ISRs
Perform Initial Configuration on Cisco 4000 Series ISRs
Configuration Examples
The following example shows how to configure virtual terminal lines with a password:
!
line vty 0 4
password guessagain
login
!
What to Do Next
After you configure the vty lines, follow these steps:
• (Optional) To encrypt the virtual terminal line password, see the “Configuring Passwords and
Privileges” chapter in the Cisco IOS Security Configuration Guide. Also see the Cisco IOS Password
Encryption Facts tech note.
• (Optional) To secure the VTY lines with an access list, see the “Part 3: Traffic Filtering and
Firewalls” in the Cisco IOS Security Configuration Guide.
Step 4
password password
Example:
Router(config-line)# password guessagain
Specifies a password on a line.
Step 5
login
Example:
Router(config-line)# login
Enables password checking at login.
Step 6
end
Example:
Router(config-line)# end
Returns to privileged EXEC mode.
Step 7
show running-config
Example:
Router# show running-config
Displays the running configuration file. Verify that you
bave properly configured the virtual terminal lines for
remote access.
Step 8
From another network device, attempt to open a Telnet
session to the router.
Example:
Router# 172.16.74.3
Password:
Verifies that you can remotely access the router and that the
virtual terminal line password is correctly configured.
Command or Action Purpose

Cisco 4000 Series Specifications

General

Category	Network Router
Product Type	Router
Form Factor	Rack-mountable
Connectivity Technology	Wired
Product Family	Cisco 4000 Series
Operating System	Cisco IOS XE
Dimensions	Varies by model
Weight	Varies by model
Model	Cisco 4000 Series
WAN Ports	Varies by model
LAN Ports	Varies by model
Storage	Varies by model
Redundancy	Varies by model
Security Features	Varies by model
Network Management	Varies by model
Data Link Protocol	Ethernet, Fast Ethernet, Gigabit Ethernet
Network/Transport Protocol	TCP/IP, UDP
Features	Varies by model
Interfaces	Varies by model
Models	Varies
Network Interfaces	Varies by model
Power Supply	Varies by model
Virtualization Support	Yes