Assigning a Local Host Name to an IP Address

 

Router(config)#ip host USA 172.17.2.5

Setting the Clock Time Zone

 

Router(config)#clock timezone EST –5

Configuring a Serial Interface router

Network-

Router(config)#interface s0/0/0

Router(config-if)#description Link to ISP

Router(config-if)#ip address 192.168.11.2

255.255.255.0

Router(config-if)#clock rate 56000

Router(config-if)#no shutdown

 

Configuring the Dialer

Configuring the Dialer

There are five steps to configuring the dialer information:

1. Choose the interface.

2. Set the IP address.

3. Configure the encapsulation type.

4. Link interesting traffic to the interface.

5. Configure the number or numbers to dial.

Here’s how to configure those five steps:

804A#config t

804A(config)#int bri0

804A(config-if)#ip address 172.16.60.2 255.255.255.0

804A(config-if)#no shut

804A(config-if)#encapsulation ppp

804A(config-if)#dialer-group 1

804A(config-if)#dialer string 8350661

Instead of the dialer string command, you can use a dialer map command. It provides

more security. Here is an example:

804A(config-if)#dialer map ip 172.16.60.10 name 800B

8350661

What is Router? Advantges? and Configuration Modes?

Router

It’s a layer 3 device that connects 2 different networks and routes packets of data from one network to another. It breaks up Broadcast domain as well as Collision Domain.

Advantages of Router

1.Router don’t forward Broadcasts by default.

2.Perform access control on the traffic that flows through the router i.e. Packet Filtering.

3.Network Address Translation.

4.Quality of Service for particular network traffic.

5.Can be used as a DHCP relay agent.

7.Connects different VLAN’s.

Different Modes for configuring a router

1.User Mode- some basic commands like ping, telnet can be done. Prompt will be Router >

2.Execution or Privilege or Enable Mode- can view all configuration details, minimal commands like ping, telnet, and clock setting. Prompt will be Router #

3.Global Configuration Mode- where all configurations are done. Prompt will be Router(config)#

Sub Configuration Modes

1.Interface configuration mode, prompt will be Router(config-if)#

2.Router configuration mode, prompt will be Router(config-router)#

3.Line configuration mode, prompt will be Router(config-line)#