Consider a datagramnetwork using 8-bit host addresses. Suppose a router uses lon

Question

Consider a datagramnetwork using 8-bit host addresses. Suppose a router

uses longest prefixmatching and has the following forwarding table. For each ofthe

four interfaces, givethe associated range of destination host addresses andthe

Consider a datagramnetwork using 8-bit host addresses. Suppose a router uses longest prefixmatching and has the following forwarding table. For each ofthe four interfaces, givethe associated range of destination host addresses andthe number of addresses in therange.

Explanation / Answer

1) On interface zero, the addresses will be of the form10****** (* can be either 0 or 1)     Number of addresses = 26 = 64 2) On interface one, the address will be of the form 110*****(*can be either 0 or 1)     Number of addresses = 25 = 32 3) On interface two, address will be of the from 1110**** (* caneither 0 or 1)     Number of address = 24 = 16 4) On interface three, addresses will be of the form 0******,1111**** (* can be either 0 or 1)     Number of addresses = 27 +24= 128 + 16 = 144

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