R/S: Cisco Router IOS Start

9/17 notes- Cisco Routing

Cisco Router IOS

How do I access my router?

Physical – hooking up a wire and logging into the device

Remote- using SSH or TelNet to log in remotely

How do I configure my router?

Console Port

            Designated by a light blue color and label

            Console cable has one RJ45 port and one Serial port.  The RJ45 goes into the router, serial into the computer. 

Via modem using an aux port – only found on older routers

Virtual terminal

Tftp server


 

POST

Load IOS From Flash into (RAM)

Load Startup Config into RAM (NVRAM)

Router Modes

Setup Mode- there are two reasons your router will try to get into setup mode:  Router fails to load a valid configuration file from NVRAM or you force it into the mode via the privileged mode. 

User Mode- the most used basic mode.  It is only used to display basic information about the router and cannot be used to configure anything. 

Router > or TeamA > 

Privileged mode- used to configure your router.

Router > enable

Router # or TeamA #

Configuration Mode- device level configuration, such as  IP addresses, passwords, ect.  There are several levels to this mode.

Router# config t or router configure terminal

Typing exit or “CTRL + Z” will take you back one level.

How do I get help?

?

Router# ?

TeamA# copy ?

If you do not see another prompt, there are two reasons:  there simply are no more options or that command is incorrect/does not exist on that router.

If you have a mistake, there will be a carrot sign ^ under the mistake. 

Setting Passwords

Two sets of passwords

User Mode – Console, Aux, VTY

Privileged Mode – Plain Text, Encrypted

Using PuTTY

Set to Serial Connection Type

Verify the correct connection

Set speed to 9600

Open

You will see a cmd type screen

**Do not lose the card!!**

Once you turn it on, your screen will populate