EE450_HW6_solns

# EE450_HW6_solns - EE450 HW#6 Solutions Fall 2006 Problem 7...

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EE450 HW # 6 Solutions Fall 2006 Problem 7. a) Prefix Match Link Interface 11100000 0 11100001 00000000 1 11100001 2 otherwise 3 a) Prefix match for first address is 4 th entry: link interface 3 Prefix match for second address is 2 nd entry: link interface 1 Prefix match for first address is 3 rd entry: link interface 2 Problem 8. Destination Address Range Link Interface 00000000 through 0 00111111 01000000 through 1 01111111 10000000 through 2 10111111 11000000 through 3 11111111 number of addresses in each range = 64 2 6 Problem 10. 223.1.17.0/25 223.1.17.128/26 223.1.17.192/26

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Problem 11. Destination Address Link Interface 200.23.16/21 0 200.23.24/24 1 200.23.24/21 2 otherwise 3 Problem 13. Any IP address in range 101.101.101.65 to 101.101.101.127 Four equal size subnets: 101.101.128/19 101.101.160/19 101.101.192/19 101.101.224/19 Problem 15. The maximum size of data field in each fragment = 480 (20 bytes IP header). Thus the number of required fragments 7 480 20 3000 » » º « « ª 0 Each fragment will have Identification number 422. Each fragment except the last one will be of size 500 bytes (including IP header). The last datagram will be of size 120 bytes (including IP header). The offsets of the 7 fragments will be 0, 60, 120, 180, 240, 300, 360. Each of the first 6 fragments will have flag=1; the last fragment will have
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