CCNA Cisco Certified Network Associate Study Guide - FTP Server

Command-Line Interface 195
for this section has 198 (0–197). The best way to find out how many lines
you have is to use the question mark.
Router(config-line)#line vty 0 ?
Last Line Number
Router(config-line)#line vty 0 197
Router(config-line)#login
Router(config-line)#password todd2
If you try to telnet into a router that does not have a VTY password set, you
will receive an error stating that the connection is refused because the password
is not set. You can tell the router to allow Telnet connections without
a password by using the no login command.
Router(config-line)#line vty 0 197
Router(config-line)#no login
After your routers are configured with an IP address, you can use the Telnet
program to configure and check your routers instead of having to use a
console cable. You can use the Telnet program by typing telnet from
any command prompt (DOS or Cisco). Telnet is covered in more detail in
Chapter 7.
Encrypting Your Passwords
Only the enable secret password is encrypted by default. You need to manually
configure the user-mode and enable passwords.
Notice that you can see all the passwords except the enable secret when
performing a show running-config on a router.
Router#sh run
[output cut]
!
enable secret 5 $1$rFbM$8.aXocHg6yHrM/zzeNkAT.
enable password todd1
!
[output cut]
line con 0
password todd1