table of Contents
1 Purpose
Familiar with Packet Tracer tool. Analysis caught application layer protocol packets, application layer protocol-depth understanding, including syntax, semantics, timing.
2 Experimental content
Use Packet Tracer, properly configured network parameter, packet data capture and analysis application layer protocol, the protocol comprising DNS, FTP, DHCP, stmp, pop3. Steps include:
- Establish a network topology
- Configuration parameters
- Ethereal
- Analysis of the data packet
3. The test report
Before writing the report, read: submit jobs to some of the considerations of the class blog .
(1) Give your personal information at the beginning of Bowen
- Full name
- student ID
- class
(2) establish a network topology
Given a network topology map, and explained briefly.
Next, the format of each protocol done as follows
3.1 DNS
(3) Configuration Parameters
The client's IP address (xx.xx.xx.xx), after two mantissa must be your student number (Such as 201821021079, IP address two of 79).
Related to the domain name, the domain name format: firstname.lastname , such as qiankun.su
(4) capture and analyze packets captured
Combined with theoretical knowledge textbooks, analyze captured packets.
Further, ponder the meaning of the core values of the field
(5) by generating new questions and answers about the experiment
With this experiment if there is a new question, you can write it out and try to solve the problem yourself.
3.2 FTP
3.3 DHCP
3.4 smtp and pop3
3.5 Other application layer protocols (not required, but are bonus items)
References:
[1] binding Wireshark packet capture depth understanding of the TCP / IP stack
[2] binding Wireshark packet capture depth understanding of the TCP / IP protocol stack of HTTP