Pre-term
My project partners and I met up with our final year project supervisor and co-supervisors a week before the school term started for a briefing. In our hour long discussion, we will given a reference book each entitled CCNA 1 and 2for us to read up for a clearer understanding and if possible aid us in our literature review.
Week 1
We are given an introduction to networking in which the supervisor incorporated the help of demonstrations to illustrate how networking is carried out. The first demonstration was on how to ping the connectivity between computers that are 2 hop away, which means that the computers are 2 router away from each other. We will then told to carry out the same exercise.
These are some of the commands we picked up:
en ==> enable
conf t ==> configure terminal
int ____ ==> port name
ip add _____ ==> ip address for the port, then the subnet mask
no shut ==> so that the devices would not shut down
clock rate ____ ==> needed only at the DCE end
router rip ==> so as to activate the created network
net _____ ==> network ip address that want to be activated
no net _____ ==> to delete the created network
sh ip route ==> show all the ip address that is connected
sh run ==> to show all details which had been configure
Week 2
We continued our practices on networking. In the absence of our supervisor, I encountered several problems as I am still not very familiar with the ‘Packet Tracer'. I try to create a more complicated situation, as expected, I encountered more problems as the situation that I created can only send file to and not fro. I try different method to solve the problem but to no a veil. 1 of my supervisors, Mr. Chan Kum Weng, came and help me solve the problem, but the scenario that I created is of no planning and no fix ip address, therefore he ask me to draw the whole scenario out with all ip address for the connect. Mr. Leong Peng Kwai however, shows us how a circuit can be more complicated and do all the demonstration for our project.
Week 3
After I draw the scenario out, I realized that I had put a wrong ip address to a subnet. On the day, same as every week, Mr Lau Wau Kee, gives us a introduction of the day of our project lecture. It is a very interesting topic, ip addressing. There is Class A, B, C, D & E. But we only focus on Class A, B & C. And I learn how to see the ip address is from which class, and after the lecture, he gives us 3 assignment on the 3 different classes.
Week 4
Mr. Chan want is to do a circuit out practically as he asks the TSOs to take 2 switches and 3 routers. He program 1 of the routers and want us to program the other 2. He also shows us how a file is created through the OSI 7 layers.
This is some other command that we learn:
er s ==> erase start
reload
host______ ==> change the host name
no ip domain-lookup
copy run start
ip dhcp e
ip dhcp pool
default-router
He also ask we all to download a program from the website[http://www.ethereal.com/download.html] as he feels that the program will help us understand more about how the data is sent with header and trailer. Below, is how it looks like.
?——————————————32 bits—————————————?
Version |
Header length |
TOS |
Packet length |
|||
Identification |
F |
Frag offset |
||||
Time to live |
Protocol |
Checksum |
||||
Source IP address |
||||||
Destination IP address |
||||||
Option |
||||||
Data |
||||||
Week 5
Our 3 supervisors prepare us for the coming SP1. And therefore every of us have to come up with 2 scenarios each and there after, we will then pick 1 best scenario each for us to present. And we have showed the supervisors all the scenarios we have done so far and together with this book. Then the supervisors give us comment on how and what we can do to improve and understand what we had done. Although I only have 4 scenarios, but I feel that I really understand how the ‘packet tracer' program works so far. I also try a lot of different scenarios this week, and it really helps a lot on my understand of how different can a switch and hub be.