CCNA-4.
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Addressing Table
In this network topology we have considered and shown the configuration that required to configuring on network components. We have
Basic Configuration
In basic configuration of the router first we have erased the existing configuration of all routers and reload them. We have assigned router name to every router by using Hostname keyword in configuration mode. Router console port and vty access are secured by assigning password (cisco). We have also configured EXEC mode password (class). Message of the day (motd keyword) is used to configure an alert message for the users. We have disabled domain-lookup to turn off DNS quires.
Router#erase startup-config // Erase the running configuration that stored in
NVRAM.
Erasing the nvram filesystem will remove all configuration files! Continue? [confirm]
[OK] //Press enter to confirm
Erase of nvram: complete
Router#reload
*May 24 11:56:57.387: %SYS-7-NV_BLOCK_INIT: Initialized the geometry of nvram
Proceed with reload? [confirm]
Router>enable //login to the router EXEC mode
Router# configure terminal //Enter global Configuration mode
Router(config)#hostname R1 //Configure Router Name
R1(config)#no ipdomain-lookup // Disabled DNS lookup
R1(config)#enable secret class //enable EXEC mode password. Here we have configured EXEC mode password by using secret keyword to encrypt the password.
R1(config)#banner motd "This is Router-1.” //The banner is displayed at login
R1(config)#line console 0
R1(config-line)#password cisco //configured console password
R1(config-line)#logging synchronous
R1(config-line)#login // password will ask at login
R1(config-line)#exit
We can access the router remotely by using telnet because it is very hard to access router every time by console port.
R1(config)#line vty
R1(config)#line vty 0 4 //configured vty password
R1(config-line)#password cisco
R1(config-line)# login //...