How to Configure CISCO Router for the Internet Connection

Step 1:  Configure BasicsIn the basic configuration we will going to configure about the hostname of the router set enable password, enable secret and set the dns server as well. You can see how we configure below.

Step 2: Configuring the Line console and vty 0 4

To make an IT guy who easy to administrator the device and to make it more secure we should consider about How can people access to this router ? so that why in this step we are going to setthe password login for the console port and vty (it was use for the telnet and ssh remote), so let’s go with the configuration below

.Step 3: setting up the LAN interface

So now it time to setting up the interface ip address and in this step we are going to set the IP Address for LAN interface so the interface fastethernet 0/1 is our LAN interface so by following the configuration below you can see how can we add the IP Address to the interface as well.

Step 4: setting up the INTERNET interface

In the Interface that you are connect to the Internet, the IP Address is have been provided by the ISP (Internet Service Provider) it really similar with the above step you just go to the interface and add theip address for it.

Step 5: Configuring NAT and Routing

NAT and Routing very importance for the Internetwork so in this step after we provided all the ip address to the router what we are going to do next is configure the NAT and Routing.

Step 6: Configuring the Access-list

After configure the NAT and Routing the another one that importance also is ACL so that it will allow our LAN to access the Internet Connection. 

Step 7: Verify configurations

So after you configure already let’s check our configuration so that if correct already or not. so by running the command sh ip route it mean that show the ip routing configuration you may see the configuration like this :

anytute#sh ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

       E1 - OSPF external type 1, E2 - OSPF external type 2

       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

       ia - IS-IS inter area, * - candidate default, U - per-user static route

       o - ODR, P - periodic downloaded static route

Gateway of last resort is 192.168.1.1 to network 0.0.0.0

C    192.168.1.0/24 is directly connected, FastEthernet0/0

C    192.168.100.0/24 is directly connected, FastEthernet0/1

S*   0.0.0.0/0 [1/0] via 192.168.1.1

Sept 8: Save the configuration

Our last step is we are going to save our configuration file so that what we have done at the moment is has been stored. by running the wr (write) it will save the configuration to the storage of the Router you can see like below.

OK reader I am hopeful that this a little article will help you in your time of need in your network journey and if you think it good for you as well don’t hesitated it share this to your friend in the social media so that they can know about this as well. 

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