METCSCS625 - Business Data Communications and Networks - Foundational Routing Concepts - IT Assignment Help

METCSCS625 Business Data Communications and Networks IT Assignment Help

Assignment Task:

Section One – Foundational Routing Concepts
Scenario 1
1. Identify which adapter(s) would receive a data-link layer broadcast transmitted by Computer B and which would not (if any). Provide an explanation of why each adapter
present in the preceding figure would or would not receive the broadcast.

2. Can Computer B directly address Computer A at the data-link layer? Explain why or why not.

3. Imagine that Computer B successfully transmits an IPv4 packet to Computer A, that there are no errors on any frame or packet, and that the ARP cache on all computers and the router is already fully populated. Identify any data-link layer frame(s) that are created for this transmission. For each frame, identify the adapter it originates from and the adapter it is addressed to, explain why it was created, and provide its source and destination MAC address and source and destination IPv4 address.

4. What function does the router serve for the transmission in #3?

Scenario 2
5. Imagine that Computer C successfully sends an IPv4 packet to Computer A, that there are no errors on any frame or packet during the transmission, and that the ARP cache on all computers and routers has been fully populated before the packet is sent. Identify any data-link layer frame(s) that are created in this scenario. For each frame, identify the adapter it originates from and the adapter it is addressed to, explain why it was created, and provide its source and destination MAC address and source and destination IPv4 address.

6. Across all frames in the transmission in #5, contrast the number of different destination IP addresses with the number of different MAC addresses. Why are these
numbers different, and what does this tell us about the routing process?

Section Two - Routing Tables
Scenario 3
7. To get started, calculate the network address and subnet mask of all three networks in this scenario. You will need these values to create rules for the computer’s routing table.

8. Create a routing table for Computer C that has no default route, and that supports sending packets to all hosts (directly or indirectly) on Network A, Network B, and
Network C. A hint is that this routing table will contain three rules.

9. Create a routing table for Computer C that has a default route, and that supports sending packets to all hosts (directly or indirectly) on Network A, Network B, and
Network C. Make sure to remove redundant routes that are not necessary with the presence of a default route.

10. Would you recommend using the routing table in #8 or in #9, for Computer C? Explain why.

11. Create a routing table for Router AB which has no default route, which supports communications to all hosts (directly or indirectly) on Network A, Network B, and
Network C. A hint is that this routing table will contain three rules.

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