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Network Troubleshooting Essay

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When troubleshooting a computer network, it is very important that we look at every small detail in that network. One small mistake like a mistyped number can make all the difference in the way a network performs. In the case of the diagram E-1, there are many problems like this that can cause the network to not perform the way it is supposed to. Some of these problems include the IP addresses, subnet masks, and default gateways in this network. All of these things need to be correct and working together in order for the network to function properly. First, we must start with the problems with the network shown in the diagram. There are many issues with this network, but I chose four problems to take a look at and try to resolve. This …show more content…

What does all of this mean? Let’s start with the default gateway. As mentioned previously, computer N and computer I both had incorrect default gateways. Computer N’s default gateway should be 135.139.0.2. Computer I’s default gateway should be 135.137.0.1. When sending packets, the computer needs to know where to send them. This is what the default gateway is for. In Chapter 2 of Guide to Networking Essentials, a default gateway is explained as “The address configured in a computer’s IP address settings specifying the address of a router to which the computer can send all packets destined for other networks” (Tomsho, 2011). The default gateway of the computer must match that of the router so that the computer will be able to send packets out to the right location. An example of this might be if a computer in that group wanted to send a file to a different computer within the network, the default gateway would tell it where to send the data. Another problem in this network was with the IP address for computer I. The IP address for computer I should be 135.137.0.11. This is how this computer will communicate with the rest of the computers in the group. The last problem with this network is subnet masks. Computers A, D, M, N, and L all have the wrong subnet masks. Computers A and D should have a subnet mask of 255.255.0.0 in order to match the rest of the subnet. Computers N, M, and L should have s subnet mask of 255.255.0.0 in order

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