Q7: [16 points] (Network Address Assignment and Resource Allocation) In the following graph, 4 networks connect to a (ga

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Q7 16 Points Network Address Assignment And Resource Allocation In The Following Graph 4 Networks Connect To A Ga 1 (195.32 KiB) Viewed 36 times

Q7: [16 points] (Network Address Assignment and Resource Allocation) In the following graph, 4 networks connect to a (gateway) router R, which connects to the rest of the Internet. The four networks are of different sizes: Network 1 has 100 hosts, Network 2 has 200 hosts, Network 3 has 50 hosts, and Network 4 has 800 hosts. The link bandwidth between each network and the router is 1Gbps (1Gbps=1000 Mbps). The bandwidth of the link that connects the router R to the rest of the Internet is 4 Gbps. Each host in networks can send data at a maximum rate of 1 Mbps. 4 Gbps Rest of Internet R Interface 0 1 Gbps 1 Gbps 1 Gbps 1 Gbps Network 1: 100 Hosts Network 2: 200 Hosts Network 3: 50 Hosts Network 4: 800 Hosts Please answer the following questions: (a) [12 points] The network addresses of the four networks are given in the following table, please figure out the most appropriate prefix length for each network so that the addresses assigned to a network is most efficiently utilized. (E.g., 128.96.160/27 means the first 27 bits of the IP address is used as network address). Network Network Address Prefix Length 1 128.96.160/X1 X1= 2 128.96.176/X2 X2= 3 128.96.168/X3 X3= 4 128.96.164/X4 X4= (b) [4 points] Please assign a network address with the longest prefix to interface ( of the router R that connects to the rest of the Internet. (Hint: the assigned network address should be an aggregate address of all four networks.)