Version 1 1. (24 Points) Show the routing tables for routers A, B, C, and D. Make sure you account for traffic to the Internet. NOTE: Router E should only be used for Internet traffic. Router A Router B Router C Router D Network Next Hop Next Hop Next Hop Next Hop 10.0.0.0 20.0.0.0 30.0.0.0 40.0.0.0 50.0.0.0 Default 2. (20 Points) Explain how the ARP Protocol works. Why is it needed? Give examples and be as specific as possible. 3. (20 Points) Explain fragmentation as it relates to datagrams. Why is it necessary? Where does it occur? When and where are the fragments reassembled? Give examples and be as specific as possible. 4. (16 Points) Explain Classful Internet Addressing. Make sure you show all the classes and how they are different from each other. Give examples. Be as specific as possible.
Version 1 5. (40 Points) Given that a frame is formatted as follows: And given that a datagram is formatted as follows: And given the following frame with an encapsulated datagram: 87 FB CF EC FC 0E C4 D5 D2 61 36 36 08 00 45 41 00 72 D3 66 27 BB 9A 87 BB 90 21 2C 49 B4 B3 A7 CC B4 0C 3F DC A6 17 1A A8 1E D7 82 01 AB 19 43 2C B3 4C 65 8D 26 61 69 8A 3F 1A EE 83 AD C9 7E 0F 92 9D 6A 54 9B 45 9F C5 B5 21 61 59 45 63 1C 91 7D F7 30 0B E2 A2 C4 4F BE EB 63 F2 B5 44 1F 75 EF 69 4E 8F A0 7F 18 70 DC C9 70 CB D9 07 41 C7 3F 54 DB F9 EB D4 17 E2 95 18 5C 61 CE 63 70 a. Find the destination hardware address. b. Find the source hardware address. c. What type of frame is this? d. What is the Identification? e. What Flag(s) are set in the IP header? f. What is the fragment offset? g. What is the TTL count? h. What is the Header Checksum? i. Find the source IP address. j. What class is the source IP k. What is the network ID in the source IP l. What is the host ID in the source IP m. Write the source IP address in dotted decimal notation. n. Find the destination IP address. o. What class is the destination IP p. What is the network ID in the destination IP q. What is the host ID in the destination IP r. Write the destination IP address in dotted decimal notation. s. If the IP header includes no options or padding, what are the first five bytes of the datagram data? t. Can this message be delivered directly by the source to the destination, or will it require routers to handle the message. Explain.
Version 2 1. (24 Points) Show the routing tables for routers A, B, C, and D. Make sure you account for traffic to the Internet. NOTE: Router E should only be used for Internet traffic. Router A Router B Router C Router D Network Next Hop Next Hop Next Hop Next Hop 10.0.0.0 20.0.0.0 30.0.0.0 40.0.0.0 50.0.0.0 Default 2. (20 Points) Explain how the ARP Protocol works. Why is it needed? Give examples and be as specific as possible. 3. (20 Points) Explain fragmentation as it relates to datagrams. Why is it necessary? Where does it occur? When and where are the fragments reassembled? Give examples and be as specific as possible. 4. (16 Points) Explain Classful Internet Addressing. Make sure you show all the classes and how they are different from each other. Give examples. Be as specific as possible.
Version 2 5. (40 Points) Given that a frame is formatted as follows: And given that a datagram is formatted as follows: And given the following frame with an encapsulated datagram: 2A C6 08 5F A5 22 49 A1 86 BE B3 C7 08 00 45 57 00 72 C2 1F 7E 0D BF 49 DC D0 3F C2 67 B4 CF BF 58 E6 FC 2A 53 9A DE B1 13 AE F4 B6 6C 29 9C 57 B2 B8 22 26 BC 5D 56 97 65 61 61 EF 8E 82 36 9A E2 04 4D BA C6 E7 03 71 C7 03 14 C5 E5 CD 2E 13 3C EF 15 17 96 FE A8 29 5C AC 2B A4 9D 80 88 A6 04 BF 9D 3B 45 1B 04 62 3A 06 22 B4 45 70 78 21 59 5A 15 DC 46 01 A2 6F BD 25 C7 E0 AE C4 F3 4F a. Find the destination hardware address. b. Find the source hardware address. c. What type of frame is this? d. What is the Identification? e. What Flag(s) are set in the IP header? f. What is the fragment offset? g. What is the TTL count? h. What is the Header Checksum? i. Find the source IP address. j. What class is the source IP k. What is the network ID in the source IP l. What is the host ID in the source IP m. Write the source IP address in dotted decimal notation. n. Find the destination IP address. o. What class is the destination IP p. What is the network ID in the destination IP q. What is the host ID in the destination IP r. Write the destination IP address in dotted decimal notation. s. If the IP header includes no options or padding, what are the first five bytes of the datagram data? t. Can this message be delivered directly by the source to the destination, or will it require routers to handle the message. Explain.
Version 3 1. (24 Points) Show the routing tables for routers A, B, C, and D. Make sure you account for traffic to the Internet. NOTE: Router E should only be used for Internet traffic. Router A Router B Router C Router D Network Next Hop Next Hop Next Hop Next Hop 10.0.0.0 20.0.0.0 30.0.0.0 40.0.0.0 50.0.0.0 Default 2. (20 Points) Explain how the ARP Protocol works. Why is it needed? Give examples and be as specific as possible. 3. (20 Points) Explain fragmentation as it relates to datagrams. Why is it necessary? Where does it occur? When and where are the fragments reassembled? Give examples and be as specific as possible. 4. (16 Points) Explain Classful Internet Addressing. Make sure you show all the classes and how they are different from each other. Give examples. Be as specific as possible.
Version 3 5. (40 Points) Given that a frame is formatted as follows: And given that a datagram is formatted as follows: And given the following frame with an encapsulated datagram: 7F C9 C1 F7 A4 00 0E 30 03 84 5D FE 08 00 45 84 00 72 67 93 7E B0 64 86 B1 38 84 9E 12 14 6C 87 F8 8B 54 75 BC 3D A3 15 6B 7E 31 61 F3 89 E5 5A 41 DA 8C 7D 49 7C 3F C3 D5 B5 EA 88 F2 AF EB 81 88 39 9C 53 D7 30 96 AF A4 35 C2 04 E8 DB 30 78 FD B9 7E DD E8 17 8F 40 13 EA 8A 45 4F EE 56 89 52 EC 35 59 8B 8C D7 6B 33 84 68 13 A2 FB 77 1F 3F 87 0C 13 7C C9 46 FB D9 B9 19 58 F9 A8 B8 4D a. Find the destination hardware address. b. Find the source hardware address. c. What type of frame is this? d. What is the Identification? e. What Flag(s) are set in the IP header? f. What is the fragment offset? g. What is the TTL count? h. What is the Header Checksum? i. Find the source IP address. j. What class is the source IP k. What is the network ID in the source IP l. What is the host ID in the source IP m. Write the source IP address in dotted decimal notation. n. Find the destination IP address. o. What class is the destination IP p. What is the network ID in the destination IP q. What is the host ID in the destination IP r. Write the destination IP address in dotted decimal notation. s. If the IP header includes no options or padding, what are the first five bytes of the datagram data? t. Can this message be delivered directly by the source to the destination, or will it require routers to handle the message. Explain.
Version 4 1. (24 Points) Show the routing tables for routers A, B, C, and D. Make sure you account for traffic to the Internet. NOTE: Router E should only be used for Internet traffic. Router A Router B Router C Router D Network Next Hop Next Hop Next Hop Next Hop 10.0.0.0 20.0.0.0 30.0.0.0 40.0.0.0 50.0.0.0 Default 2. (20 Points) Explain how the ARP Protocol works. Why is it needed? Give examples and be as specific as possible. 3. (20 Points) Explain fragmentation as it relates to datagrams. Why is it necessary? Where does it occur? When and where are the fragments reassembled? Give examples and be as specific as possible. 4. (16 Points) Explain Classful Internet Addressing. Make sure you show all the classes and how they are different from each other. Give examples. Be as specific as possible.
Version 4 5. (40 Points) Given that a frame is formatted as follows: And given that a datagram is formatted as follows: And given the following frame with an encapsulated datagram: 05 9D 46 37 B6 B2 45 84 0A 86 A4 EB 08 00 45 3F 00 72 17 76 4C B0 7B F6 9E 54 9F D5 D0 96 53 44 C2 B8 33 04 DA 64 90 74 7A E6 07 E9 33 4A 81 7F 25 2A 2F 2F 7E FB C0 1D A0 A2 DB B6 49 2D BC 27 09 35 BA 66 92 F7 E9 38 66 F6 10 22 03 45 9F 79 1D 77 D0 28 66 DB 95 3B 34 8A 09 12 B5 A3 C9 02 8B 96 2F 4E 3B BD F8 C1 1A 86 ED 1E AF 56 AC A7 8E F4 6B C9 34 CE 2F D6 29 FE 02 77 18 9C AF F8 a. Find the destination hardware address. b. Find the source hardware address. c. What type of frame is this? d. What is the Identification? e. What Flag(s) are set in the IP header? f. What is the fragment offset? g. What is the TTL count? h. What is the Header Checksum? i. Find the source IP address. j. What class is the source IP k. What is the network ID in the source IP l. What is the host ID in the source IP m. Write the source IP address in dotted decimal notation. n. Find the destination IP address. o. What class is the destination IP p. What is the network ID in the destination IP q. What is the host ID in the destination IP r. Write the destination IP address in dotted decimal notation. s. If the IP header includes no options or padding, what are the first five bytes of the datagram data? t. Can this message be delivered directly by the source to the destination, or will it require routers to handle the message. Explain