Networking 1, Lab 4
TCP/IP Networks (Part 1)
October 10, 2008
Natasha Busch

Objectives: To better understand how the TCP/IP Networks Run and where the IP addresses come from. Also to set up a stand-alone TCP/IP network between two computers in the lab.

Equipment List: We used the lab computers, a router, switch, and ethernet cables. We also used the putty software to set up the router.

Notes and Observations: I this lab i noted that there are many IP addresses, however we are running out of the standard IPv4 addresses. They have already implemented the IPv6, however it is not fully running the internet now. I read on the IANA website that the olympics is already availible on the IPv6, which is-128 bit addressing scheme compared to the 32-bit addressing scheme of the IPv4. This allows for much quicker transmition, better security, and easier management through autoconfiguration of devices. However, it is much harder to install and configure than the IPv4.
I also noted the basic requirements for a TCP/IP network using the standard IPv4. They include; a unique IP address, a subnet mask for each host, and a gateway address for all hosts when the network uses a router. We used two classes of networks the “B” and “C” simple networks. Basically, this is how we will route information from each type of network to the other, then use a ping command to make sure both networks are connected to the router. Since there was no hyperterminal another student on the opposite network set up the router configuration using a downloaded version of a Unix interface. It was pretty simple to hook the computer to the switch and the router. Once the router was configured to the network i was able to get a response from both the router and the network the other students had created.

Diagrams and Figures:
Net Host Host Host
A. 8 8 8 8
Net Net Host Host
B. 8 8 8 8
Net Net Net Host
C. 8 8 8 8

Throughput diagram

References and Questions: I referenced the handout, my neighbors, the teacher and the following web sites; www.iana.org and www.arin.net.

Questions:
1. Compare and contrast the IANA and ARIN.
The IANA and the ARIN are both not for profit organizations that are responsible for IP address space allocations. The main difference I could find between the two was that the IANA does not control the content, spam, or deal with access to the internet. The ARIN does Registration transaction information. (WHOIS) and also internet routing resistry. I appears that the primary focus of the IANA is the expansion and evolution of the internet, whereas the ARIN is more concerned with management of internet resources and technical coordination. The IANA also changed to the ICANN in 1998.

2. Some of the reasons for updating the TC/IP protocol with the new IPv6 include;
a) We are running out of IP addresses, there are less than a billion left.
b)The internet is changing and hardware is so readily availible to people and the need for a faster, more safe, more manigable protocol.
c) This is just an opinion but i think it is about time that 128-bit addressing scheme is availible.

3. Some reasons to continue the use of IPv4 are;
a) It is already implemented and widely used by software venders and service providers.
b) It is easier to install and configure apon comparison.
c) This is just an opinion but stick with what you know works.

4. Class “C” network

1. 192.168.10.2
2. 192.168.10.10
3. 192.168.10.4

5. Class “B” network

1. 172.16.0.2
2. 172.16.0.10
3. 172.16.10.11
4. 255.255.255.1
5. Level 3 is the highest OSI layer.

6.

1. 192.168.10.2
2. 172.16.0.0