CN – Lab Exercise 1

Step 1 Connect into the Internet Establish and verify connectivity to the Internet. This ensures the computer has an IP address.

Step 2 Gather TCP/IP configuration information

Step 3 Record the following TCP/IP information for this computer

IP address: 192.168.11.1
Subnet Mask: 255.255.255.0 
Default Gateway: 192.168.11.1 

Step 4 Compare the TCP/IP configuration of this computer to others on the LAN If this computer is on a LAN, compare the information of several machines. (Maximum of 3) Are there any similarities?

There is some similarities 

What is similar about the IP addresses?

It uses address class C 

What is similar about the default gateways?

Its the name as it uses N, N, N, H (address C)


Step 5 Check additional TCP/IP configuration information In the LAN, what similarities about the Physical (MAC) Addresses are seen?

There is no similarities.  

While not a requirement, most LAN administrators try to standardize components like NICs. Therefore, it would not be surprising to find all machines share the first three Hex pairs in the adapter address. These three pairs identify the manufacturer of the adapter. Write down the IP addresses of any servers listed:

Write down the computer Host Name: Lab 2 

Write down the Host Names of a couple other computers: Lab 2 

Do all of the servers and workstations share the same network portion of the IP address as the student workstation? Yes 

Reflection

Based on observations, what can be deduced about the following results taken from three computers connected to one switch?

Computer 1 IP Address: 192.168.12.113 Subnet Mask: 255.255.255.0 Default Gateway: 192.168.12.1 Computer 2 IP Address: 192.168.12.205 Subnet Mask: 255.255.255.0 Default Gateway: 192.168.12.1 Computer 3 IP Address: 192.168.112.97 Subnet Mask: 255.255.255.0 Default Gateway: 192.168.12.1

Should they be able to talk to each other? Are they all on the same network? Why or why not? If something is wrong, what is most likely the problem?

From my observation, it is a yes that they should be able to talk to each other as it does not has any IP address conflict. IP conflicts occur when two or more computers or devices (like a tablet) in the same network end up being assigned the same IP address.

An IP (Internet Protocol) address is the computer’s unique identifier, comprised of a string of numbers, such as 192.168.12.113, 192.168.12.205 and so on. Without one, we can’t connect to the network. Usually a warning or error message will show, alerting you of the problem. Sometimes these issues resolve themselves, but that’s not always the case. 

Therefore the most likely problem if the computers in a room is not working while the other one is working its mainly because the IP addresses are the same and is conflicting. It can be resolved by using different IP addresses on the other computers.