exercise 4

While capturing the live data from the web site www.google.com, found the following informations.

The IP address 10.1.1.2 sends the request to 10.1.1.1 through the DNS. Here 10.1.1.1 is the IP address to the LAN port, and the IP address 10.1.1.2 is the address of the machine which sends the request to the LAN port to access the www.google.com. Once the IP address 10.1.1.1 gets the request from the IP address 10.1.1.2 the IP address 10.1.1.1 sends the common name of the websites. While the IP address 10.1.1.2 gets the common name of the website then it sends the another query to the IP address 10.1.1.1 about the safebrowsing and ask to allow the IP address of the cname. Once the IP 10.1.1.1 gets the request it sends the IP address of the cname which is 66.102.11.101 and 66.102.11.100

once the IP address got the IP of the google it will directly sends the request to the IP of the google. While performing all this transaction both the IP were using the DNS protocol.

10.1.1.2 sends the request to the 10.1.1.1 throught DNS

10.1.1.1 sends the reply to the 10.1.1.2 through DNS

10.1.1.2 sends the request to the 10.1.1.1 through DNS

10.1.1.1 sends the reply to the 10.1.1.2 through DNS

Here as previously mention that the 10.1.1.2 is the IP address if the machine which sends the request and the IP address 10.1.1.1 is belongs to the LAN port of the machine.

To complete this transaction the system passes the 11 frames to get the required website by the machine.

Following is the screen shot of the Live capture