A) Consider the following network links: G1 8.8.8.8 L1 10.0.0.5 X1 216.34.181.48

Question

A) Consider the following network links: G1 8.8.8.8 L1 10.0.0.5 X1 216.34.181.48 L2 10.0.1.7 X2 216.34.181.45 G2 130.102.72.8 i) For each source and destination below, fill in the table of how many source IP addresses, destination IP addresses and destination MAC addresses will be involved in the transport of a UDP message travelling from source to destination? 3 marks] Source Dest Number of Number of Number of Source IPs Destination Destination IPs MACs Ll 2 2 X2 ii) There is an upper limit on the number of nodes bctween L2 and X2 if they are to communicate. What determines this upper limit? 2 mark iii) If X1 and X2 had their IP addresses changed to 192.168.1.1 and 192.168.1.2 respectively; what els

Explanation / Answer

Before solving this question, let us refresh some of our knowledge and be clear with these basics.

Think, if a computer wants to send a message to other computer, How will that computer know that the destination is in the same network or a different network ?

Now, If the source and destination are present in same network, source will directly send message to destination else to default router of the network.

i)

Source: L1 Dest: L2

Source = L2 Dest:X2

ii)

iii)

If X1 and X2's ip addresses are changed to 192.168.1.1 and 192.168.1.2 respectively, both of them can still be present in the same network.

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