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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Consider a router that interconnects three subnets: Subnet 1, Subnet 2, and Subnet 3. Suppose all the interfaces in each of these three subnets are required to have the prefix 223.1.17/24. Also suppose that Subnet 1 is required to support up to 125 interfaces, and Subnets 2 and 3 are each required to support up to 60 interfaces. Provide three network addresses (of the form a.b.c.d/x) that satisfy these constraints.
Now consider the below example of a forwarding table unsing longest prefix matching. Rewrite this forwarding table using the a.b.c.d/x notation instead of the binary string notation.
Destination Address Range
11001000 00010111 00010000 00000000
through
11001000 00010111 00010111 11111111
Link Interface 0
11001000 00010111 00011000 00000000
through
11001000 00010111 00011000 11111111
Link Interface 1
11001000 00010111 00011001 00000000
through
11001000 00010111 00011111 11111111
Link Interface 2
otherwise Link Interface is 3
Hel-----------lo -----------Sir-----------/Ma-----------dam-----------Tha-----------nk -----------You----------- fo-----------r u-----------sin-----------g o-----------ur -----------web-----------sit-----------e a-----------nd -----------acq-----------uis-----------iti-----------on -----------of -----------my -----------pos-----------ted----------- so-----------lut-----------ion-----------.Pl-----------eas-----------e p-----------ing----------- me----------- on-----------cha-----------t I----------- am----------- on-----------lin-----------e o-----------r i-----------nbo-----------x m-----------e a----------- me-----------ssa-----------ge -----------I w-----------ill----------- be-----------