Question

please make it clear thanks

4. Consider three LANs interconnected by two routers, as shown in the following figure. a. Assign IP addresses to all of the host and router interfaces. For Subnet 1 use addresses of the form 192.168.200.xxx: for Subnet 2 uses addresses of the form 192.168.30.xxx; and for Subnet 3 use addresses of the form 192.168.100.xxx. b. Assign MAC addresses to all of the host and router interfaces. Assume that all the MAC addresses start with "00-00"; thus, all the MAC addresses should be in the form of "00-00-XX-XX- XX-XX", where X can be from 0 to F. (Notice that link-layer switches do not have IP addresses or MAC addresses. For a and b, your answer can be arbitrary, as long as they conform to the correct address range and format. Your answer to c depends on your answers to a and b.) c. Consider sending an IP datagram from Host A to Host F. Suppose all of the ARP tables are up to date. Please give the source IP, source MAC, destination IP and destination MAC when the datagram is sent from A to the left router. Please give the source IP, source MAC, destination IP and destination MAC when the datagram is sent from the left router to the right router. Please give the source IP, source MAC, destination IP and destination MAC when the datagram is sent from the right router to the Host F.

Answer 1

SUBNE 7-3 SUBNE 7-2 Host.cl 192.168.30.0/24 R-1 HOSTA SUBNET-1 THOST-E 192.168.100.0/24 R-2 19:45 20.opponent way, tumeumis Orte wen HOST- HOST-D] HOST-F PART-A 1P - HOST - A 15 ASSIGNED 192.168.200 1/24 192.168.200.2/24 IP ASSIGNED HOST-B IS 192.168. 200. 3/24 (FA00 R-1(NAME ASSOMED) IS ASSIGNED IP ADDRESS - 192.168.30-1/24 HOST-C S ASSIGNED IP IP ADDRESS - 192.168.30.2/24 IS ASSIGNED HOST-D IP ADDRESS - 192.168.30? 1 15 ASSIGNED R-2 (NAME ASSUMED) IS ASSIGNED IP ADDRESS - 192.168.30.4/24(FA ofi) HOST-E IS ASSIGNED IP ADDRESS - 192.168.100.1/24 HOST - F is R-2 15 ASSIGNED IP ADDRESS - 192.168.100.2/24 ASSIGNED IP ADDRESS - 192.168.100.3124CFA olo) that is connecte PORT OF ROUTER FA FAST ETHERNET SWITCHES. Network host bit is 24, so the will be of the /24 subnet mask, 24 means mask of all Rourer and forem 255.255.255.0.

PART-B MANUFACTURER INTERFACE ID D ADDRESS OF HOST - A -> DD-DO - 28-A3 - 3D - 6A ADDRESS OF HOST-B- 00-00 - 28-A3 - 3D-6B ADDRESS OF R-I (FA )-> 00-00 - 10 - B4-4E-73 MAC 00-00-10-B4-49E-TC OF R-1 (FAO) ADDRESS OF HOST-C MAC ADDRESS 00-00-28-43-3D-6C -> 00-00-28-13 - 3D-6D MAC ADDRESS МАС. ADDRESS OF HOST - OF R-2 (PA0) ► 00-00-10 - B4-4€ - 7D OF R-2 (FA 0/01) -> 00-00-10-34-4E-7€ OF HOST - 00-00-28-43-3D-6E MAC ADDRESS OF ADDRESS MAC 00-00-28 - A3-3D-67 - --> DO ESS ADDRESS OF HOST-F МА PART-C TO R-1 FROM HOSTA IP DATAGRAM SOURCE-IP -> 192.168.200 1/24 SOURCE - MAC -> 00-00-28 - A3-3D-6A DESTINATION-IP-> 192.168.100.2/24 DESTINATION-MAC -> 00-00-10 - B4-4E-7B MAC OF R-1 PORT FA0/0) IP DATAGRAM FROM R-I TO R-2 SOURCE-IP -> 192.168.200 1/24 SOURCE-MAC - 00-00-10-34-4E-7 C(MAC OF RA PORT FAO/1) DESTINATION-IP --> 192.168.100.2/24 DESTINATION-MAC -> 00-00-10-34-4E-7 E MAC OF R-2 PORT FA 071) IP DATAGRAM FROM R-2 TO HOST-F SOURCEIP > 192.168.200 1/24 DURCREOMINOP-30-10 - B4-46-7D (MAC OF R-2 PORT FA0/0) INMIDUAL>CAMERA: 100.2/14 DESTINATION-MAC -> 00-00 - 28-A 3-3 D-6F

In Parl-c of the questions source-il and Destination-ip never changes connectivity this and is because Ip is end-to-end so does not change. - to MAC address however changes depending on is transversing. packet subnet where
IP works in layer 3(Network layer) which is end to end while MAC(media access control) works in layer 2(Data link Layer) which is local to the subnet where packets are being sent.