CYB_210_Project_One

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Southern New Hampshire University *

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210

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Computer Science

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Dec 6, 2023

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Network Modification Brief Network Modification Brief Amelia Lynn Madsen SNHU CYB 210 Computer Networking

Network Modification Brief 2 The first part of the setup was placing all the devices where they needed to be. I placed the wireless router, tablet, and phone into the “Guest wireless area” and the two cameras into the “Video Camera Area”. Next, I configured the switch with the new VLANs 70 “Guest” and 80 “Videos” added to the list of VLANS (see figure 1). I then began setting up the router by physically connecting it to the switch with a copper straight-through cable and changing the display name to Guest (see figure 2). I ensured that DHCP was selected on the router (see figure 3). I changed the IP address to 192.168.70.10 with a subnet mask of 255.255.255.0 (see figure 4). Under wireless I set the SSID to “Guest” and disabled authentication so that there is no password needed for the Wi-Fi (see figure 5). Using the GUI I ensured that the connection type was set to DHCP and the IP and subnet were correct. Then I set the maximum number of users to 70 before saving (see figure 6). Next, I set up the smartphone by connecting it to the router by changing the wireless connection to Guest. The DHCP assigned it with the IP address 192.168.70.12 (see figure 7). Then, I set up the tablet by connecting it to the router by changing the wireless connection to Guest. The DHCP assigned it with the IP address 192.168.70.13 (see figure 8). I then verified that the wireless devices were connected to the guest network by pinging the IP address 192.168.70.10 (see figures 9 and 10). After this I moved on to the cameras. I started by connecting the two cameras to the switch with copper straight-through cables. Then I set the cameras up with static IP addresses so they would always connect to the video VLAN rather than trying to connect to the wireless VLAN (see figures 10-13). The final map of the network is shown in figure 14.

Network Modification Brief 3 The IP address 192.168.70.0 with subnet mask of 255.255.255.0 would allow for 254 total usable hosts which is more than enough for our purposes which is why when I set up the router, I limited the number of users to 70 as specified. I could have changed the lease time on the DHCP, but this router was not set up to do so and its default lease time was one day which was more than enough for our purposes. Setting up the VLAN 70 ensures that the guest network is segmented from the other network traffic and setting the cameras with their own static IPs prevents them from overlapping with that VLAN. Figure 15 shows that the networks are segmented by attempting and failing to ping the cameras from the smartphone.

Network Modification Brief 4 Figure 1

Network Modification Brief 5 Figure 2

Network Modification Brief 6 Figure 3

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