Cisco 2501 - Router - EN Manual do Utilizador descarregar pdf (Página 34)

212

Chapter 4

Introduction to the Cisco IOS and SDM

But before I get into showing you all about setting descriptions on your routers, let’s go

through a quick summary of how you might set and encrypt your passwords.

1. Encrypt all clear text passwords: service password-encryption

2. Protect access to the user mode prompt: line console 0; password friendSonly

3. Set privileged mode encrypted password: enable secret noWayIn

4. Set password to allow Telnet connections: line vty 0 4; password 2Hard

5. Set privileged mode clear text password: enable password dontuwish

6. Set the VTY lines to only accept Secure Shell: line vty 0 4; transport input ssh

I am not recommending step 5, just showing you the Cisco objectives, and if

you configure step 3, step 5 becomes irrelevant.

Descriptions

Setting descriptions on an interface is helpful to the administrator and, as with the hostname,

only locally significant. The description command is a helpful one because you can, for

instance, use it to keep track of circuit numbers.

Here’s an example:

Todd#config t

Todd(config)#int s0/0/0

Todd(config-if)#description Wan to SF circuit number 6fdda12345678

Todd(config-if)#int fa0/0

Todd(config-if)#description Sales VLAN

Todd(config-if)#^Z

Todd#

You can view the description of an interface with either the show running-config command

or the show interface command:

Todd#sh run

[output cut]

interface FastEthernet0/0

description Sales VLAN

ip address 10.10.10.1 255.255.255.248

duplex auto

speed auto

47020.book Page 212 Wednesday, January 2, 2008 4:31 PM

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 75 76

Sem comentários

Cisco 2501 - Router - EN Manual do Utilizador Página 34