Mohamad Ikbal Blog

Encapsulation is the inclusion of the one thing within another thing so that the included thing is not appearance.

In this project, we use a protocol analyzer called WireShark

II.                 Goal

The goal of this project is for analyzing encapsulation and in the end, we are understand about transferring of data

III.              Content

3.       Run communication application that we are analyzing, in this case we are analyzing communication to www.bing.com

When loading page is complete, stop capturing

4.       Stop capturing

C.      Write the PDU

·         Application/Datagram

Informasi                                 :

1.        

Di informasi ke 2 disini DOCTYPE html di bungkus oleh javascript agar dapat di baca oleh mesin

·         Transportation/Segment             :  

1.       Source port                                : http   (80)

-       Web Server Port ini biasanya digunakan untuk web server,

2.       Destination Port                          : port 47477

Port assigned by operating system or application used for serving the user request

Port ini di gunakan pada OS atau aplikasi yang di gunakan untuk menampilkan permintaan pengguna

·         Packet

1.       Flags                                        : PSH,ACK

2.       Protocol                                   : HTTP

3.       Version                                    : 4

·       Network/Frame

-          Time                                           : Aug 31, 2012 09:23:52.133554000 Pacific Daylight Time

-          Frame Number                          : 582

1.       Protocol in Frame                      : eth:ip:tcp:http:data-text-lines

2.       Frame Length                             :  479 bytes (3832 bits)

3.       Source address                          : 119.11.251.10

4.       Destination Address                   : 172.16.16.16

·   Physical/Bitstream                            : -

1.       Network interface Vendor code : Azurewav_68:64:0f

2.       MAC  Address Destination        : e0:b9:a5:68:64:0f

3.       Router Source                            : Routerbo_ac:07:de

4.       MAC Address Source               : 00:0c:42:ac:07:de

IV.              Conclusion

So,  from our protocol analyzing project, we can conclude that when we are accessing a

Site, like www.bing.com, in example, and start capturing communication traffic from protocol analyzer like Wireshark, we found there are many encapsulation process are happening. And based on our analyzing project, we know the communication between our PC and bing server is half-duplex communication. And now we know that encapsulation process isn’t only happening when we access a site, but encapsulation process always happening when a PC was doing a communication with other PC.