Shulou(Shulou.com)06/01 Report--

Familiar with cisco 3550 common configuration commands

Set the tag name of the equipment, generally by equipment model + physical location + management IP address

command:(config)#hostname machine_name

View device system versions and information

show version

show boot

show flash:

sh cpu

Configure login username and password

username Cisco password cisco

Close error command query: no ip domain-lookup

SSH login configuration

In configuration mode:

line vty 0 15 //"(config)#" in Configure Remote Administration Login

password cisco

login local //Set password first to enable remote effects

transport input {ssh|telnet|none|all} //

access-class 1 in //character "1" is access-list table name

no exec-timeout

In enable mode:

enable password cisco

enable secret cisco1 //secret password and password are set at the same time, enable password does not take effect

sh lacp sys-id

sh file system

sh hardware

dir or show flash

crypto key generate rsa //To create a domain name, use ip domain name syx.com

AAA authentication enabled, aaa new-module

Neighbor Discovery Protocol

cdp run

cdp timer 10

cdp holdtime 30

cdp advertise-v2

int f0/1 interface enables cdp protocol

cdp enable

7. line con 0 configuration// console port configuration

password cisco

login local

8.spanning-tree

sh spanning-tree active

sh spanning-tree vlan XX active

9.NTP

ntp peer 192.168.1.1 ver 3 key 2 source f0/10 prefer

ntp authenticate

ntp broadcastdelay 3000

ntp trustkey 2

ntp authentication-key 2 md5 cisco

10.VTP

vtp mode {client |server|transparent}

vtp password cisco

vtp domain domain_name

vtp version 2

vtp pruning

View vtp configuration information

sh vtp password

sh vtp status

11. port security

int f0/1

swithport port-security ?

ip dhcp snooping(arp prevent ***)

IP dhcp snooping globally enabled

int f0/1

ip dhcp snooping {limit rate |trust|vlan}

sh ip dhcp snooping

12. Terminal display buffer size

terminal length 100

terminal width 100

sh mac address-table dy int f0/1

sh int counters

errdisable recovery {internal|cause}

13. dhcp configuration, configured on cisco 3550 devices

ip dhcp pool 0

network 192.168.10.0 255.255.255.0

default-router 192.168.10.1

dns-server 192.168.1.254

domain-name cisco-china.com

lease 7 9

Address settings that are not assigned to users by dhcp address pools

ip dhcp excluded-address 192.168.10.254

ip dhcp excluded-address 192.168.10.1 192.168.10.20

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