Different Modes in a router & Booting Sequence

Different Types of Modes in a router:

1. User Mode à Router>
2. Privilege Mode à Router#
3. Global configuration Mode à Router(Config)#
4. Interface Global configuration Mode/ Interface Mode à Router(config-if)#
5. Line Mode à #Line Vty

   Line Modes:

   à Auxiliary mode

   à Console mode Vty - Used for Telnet & SSH

Here are the five passwords you can set on a Cisco router:

• Console           : for login through console cable
• Aux                 : For login through auxiliary port
• VTY               : For remote login
• Enable password : This is to enable to privilege mode (plain Text)
• Enable Secret : (Encrypted text MD7)

   Features of router:

·         Carry network protocols and there functions

·         Connecting high-speed traffic between devices

·         Adding security to control access and prevent unauthorized access

·         Provide scalability for easy of growth

·         Supply network reliability for connected recourses.

Types of router:

1.      Fixed (non-modular)    - we can’t add new extra ports

2.      Modular    - we can add extra ports

Again two types they are a) Manageable                   - we can configure

              b) Non-manageable           -we can’t configure, only plug and play.

Booting Sequence in Router/ Switch:

The Register Values:

0x2100 – ROMMON Mode

0x2101 – Rx Boot

0x2102 – Normal bootup seq

0x2103

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0x210F