2. Determine the subnet mask for a /24 address network that needs

a. 2 subnets

b. 4 subnets

3. For the following IP address and subnet mask determine the number of subnets and the number of hosts per subnet

a. /16 255.255.192.0

b. /24 255.255.255.128

c. /20 255.255.250.0

d. /18 255.255.224.0

4. A router has a forwarding table as shown. Assume that the router uses longest prefix match to forward a packet on a link. For each of the following address, determine the link on which the router forwards the packets.

a. 128.64.16.43

b. 128.64.22.64

c. 128.64.18.57

d. 128.64.32.43

e. 128.64.130.24 f. 128.64.192.27

Address Link

128.64/16 L1

128.64.16/20 L2

128.64.20/22 L3

128.64.16/24 L4

128.64.128/17 L5