Some Basic Cisco Commands

[hishanxp]

Swtich Commands
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enable -privilaged mode
disable -to move back to user mode

config t- configuration mode

exit- to exit modes
hostname- to change hostname

to give an ip address to telnet
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con>interface vlan 1
con>ip address xxx.xxx.xxx.xxx subnet mask

to exit privilaged mode

end ot ctrl+z

to save information
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copu run start

Setting passwords
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-->privilaged mode

enable password - privilaged mode non encrypted(can be seen in show running config)
enable secret -encrypted mode
no enable password/secret - to remove password

-->Protect Console

#line console 0
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optimizing and torbleshooting switch netwroks
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#password cisco
#login -requird password @ login
#no login -no password required to login (guest)



-->protecting telnet(vty virtual terminal)
#line vty 0 15
# password cisco
#login



-->Encrypting all apsswords
#in global config
#service password-encryption (one word)
#exec-timeout 30 0 -idle time out value
#no ip domain-lookup -turn off automatic look up


Logon Banners
-----------------------------

login -onlin console vty
motd -all times it shows up message of the day

#banner motd + do not login +

-->Configure swith with passowrd SSH


1)username hishan password cisco
2)ip domain-name cbtnuggets.com
3)crypto key generate rsa (enter)
4)1024
5)ip ssh version 2
6)l7)ine vty 0 4
7)transprt input ssh -to enable only ssh to enable boath type telnet also

--->port secutiry

show ip interfaces brief -vieving port ip address
teminal monitor -to see what hapening on switch
show mac address table -ti view mac address

-->configuring interface

#interface fastethernet 0/5
#switchport mode access
#switchport port-security
#switchport port-securtity maximum 1 ---maximum mac address is set to 1
#switchport port-securtity violate shutdown/protect/restrict
#switchport port-securtity mac-address --mac here-- /stickey:- auotmatical take coneevcted mac

--->
vieweing port security

#show port-security -all interfaces
#show port-security interface fa 0/5

#interface range fastethernet 0/5 -24 --- to configure range of ports