Q$1.$ Does DHCP use a transport Layer$$s Protocol, or does it send directly on IP

packets?

Q$2.$ If your previous answer is $$directly on IP packets$$ then skip this question.

Otherwise, Answer this: what is the name of the transport layer protocol that DHCP

uses? What is its abbreviated$/$short name?

Q$3.$ What is the sequence of DHCP messages that are exchanged for the PC to get an

IP$?($name the DHCP messages as you studied in the class$)$

Q$4.$ Explain how each of the $4$ messages are distinguished? $($how do you know the

type of each of the $4$ messages?$)$ Explain your answer based on what you studied

form the links in the DHCP overview section and from the packets you got on

Wireshark?

Q$5.$ What is the value of the Transaction$-$ID in each of the four DHCP messages

$($from the previous question$)?$

Q$6.$ What is the purpose of the Transaction$-$ID field?

Q$7.$ A host uses DHCP to obtain an IP address, among other things. But a host$$s IP

address is not confirmed until the end of the four$-$message exchange! Then what

values are used in the IP datagrams indicate the source and destination IP addresses

in the four$-$message exchange? For each of the four DHCP messages?

Q$8.$ What is the IP address of your DHCP server?

Q$9.$ Explain the purpose of the router and subnet mask lines in the DHCP offer

message.

Q$10.$In the offer message, what is the value of the Router $$s IP$?$

Q$11.$Where in full details $($name of the field$)$ is the Router$$s IP specified in the offer

message?

Q$12.$In the offer message, what is the value of the $($DNS$)$ Domain Name Server $$s IP$?$

Q$13.$Where in full details $($name of the field$)$ is the Domain Name Server$$s IP

specified in the offer message?

Q$14.$How long is the lease time in your experiment?

Q$15.$What is the name of the field that specifies the lease time?

Q$16.$In which of the $4$ messages that field had a meaning$/$actual value?

Q$17.$What is the link$-$layer $($e$.$g$.,$ Ethernet$)$ address of your host?

Bonus:

Suppose that you released the IP address you got from the DHCP$,$ and waited for a

while BEFORE you get a new IP from the DHCP$.$ If you had Wireshark sniffing

in that period $($after release and before getting new IP$)$

Q$18.$Did Wireshark capture any packets?

Q$19.$What is their type?

Q$20.$Who is their sender$?$

Q$21.$Explain why did your PC receive those packets, even though it does not have an

IP for itself?