Data Networking/Fall 2014/Priya/Working Example

We have considered a client entering our network, requesting for the neunetworks.com webpage. When the client enters the webpage address in the browser the following steps are taken in the process of the client acquiring the page. Step 1  Requesting webpage - "neunetworks.com" 

In the first step, the client wants to join neunetwork for the first time. Since it is new to the network, it requests the DHCP server for an IP address. The DHCP message exchange can be seen here

Step 2  DNS Interaction - "neunetworks.com" 

After acquiring an IP address, the client now interacts with the DNS server as shown below.



The flow of UDP stream is shown here 



Step 3  HTTP Requests and Response - "neunetworks.com" 

The client HTTP request is now sent to the webserver requesting the page "neunetworks.com" and the server responds with the page information.



The flow of TCP stream is shown below



Thus the connection is now established and the webpage is received by the client!!!!