a) Note that hosts 198.0.0.5 and 128.0.0.5 have the same physical (MAC) address.

Question

a) Note that hosts 198.0.0.5 and 128.0.0.5 have the same physical (MAC) address. Will this cause any problems? Argue why yes or why no.
b) Assume that host 198.0.0.7 sends a TCP message to host 128.0.0.8 using the broadcast physical (MAC) address. Will the TCP process in host 198.0.0.5 receive (i.e. see) a copy of this message? Will the IP process in host 198.0.0.5 receive (i.e. see) a copy of this message? Argue why yes or why no

Consider the following figure P: 128.0.0.5 MAC: 0D EF AA 10 EE FF IP: 128.0.0.9 MAC: EF A9 IP: 198.0.0.7 MAC: AA E1 A2 EO FE BA AE 1F B8 FF IP: 128.0.0.8 MAC: BC EF AD 10 E9 FF IP: 198.0.0.9 MAC: AC F1 B2 IP: 198.0.0.5 MAC: OD EF AA 10 EE FF EO AA BB

Explanation / Answer

Answer:

a)

Yes, in general the physical address of every IP addresses are not be same, it has a unique address.

MAC address: It abbreviated as Media Access Control address of a device is a addresses are assigned to a Network Interface Controller for communications at the data link layer of a network segment.

b)

No, it does not send a copy. By using the broadcast physical(MAC) address, when host 198.0.0.7 sends a TCP message to host 128.0.0.8 it goes to that particular host only.

Example: Suppose while we are calling a person through a mobile phone then we need his/her contact number thus that calls will goes to them only.

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