Do all of the following look right to you? Explain! (do not just answer yes or n

Question

Do all of the following look right to you? Explain! (do not just answer yes or no). Note the answer of a part may not be definitely yes or definitely no; it depends on the type, the configuration, etc. For yes, please refer to a slide, an example etc. For no, please explain the reason.

(a) One computer with two different IP addresses at the same time.

(b) A data frame with both IP header and ICMP header.

(c) A data frame with both IP header and ARP header.

(d) Two computers in the same network of exactly the same IP address.

(e) Two computers in two different networks of exactly the same IP address.

Explanation / Answer

Do all of the following look right to you? Explain! (do not just answer yes or no). Note the answer of a part may not be definitely yes or definitely no; it depends on the type, the configuration, etc. For yes, please refer to a slide, an example etc. For no, please explain the reason.

(a) One computer with two different IP addresses at the same time. Yes, multiple IP's can be configured though it is not advisable unless you have multiple NIC.

(b) A data frame with both IP header and ICMP header. yes, ICMP header starts after the IP header and has protocol number 1.

(c) A data frame with both IP header and ARP header. YES

(d) Two computers in the same network of exactly the same IP address. YES when seen from external network, but internally they have to have different IP's

(e) Two computers in two different networks of exactly the same IP address. YES If network is internal then two computer can have same local IP

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