What is a subnet (subnetwork)?

Running head: SUBNETTING AND IP ADDRESSING
Subnetting and IP Addressing
Name of the Student
Name of the University
Author Note

SUBNETTING AND IP ADDRESSING1
Table of Contents
Question 1: Subnet Classification..............................................................................................2
1.1 Network addresses for subnets of the figure....................................................................2
1.2 Subnet addresses when number of hosts between subnets A-D is 21..............................2
1.3 Network prefix advertised by R1 to public Internet.........................................................3
Question 2: IP Addressing.........................................................................................................3
2.1 Global unicast, unique local and link local IPv6 addresses and comparison with IPv4. .3
2.2 NAT and purpose of utilization with IPv4.......................................................................4
Question 3: Comparison of Link state and Distance vector routing protocols at network layer
with their advantages and disadvantages...................................................................................5
Link State Routing Protocols.................................................................................................5
Distance Vector Routing Protocols........................................................................................5
Question 4: Evaluating efficiency of system.............................................................................6
Question 5: TCP Communication..............................................................................................7
5.1 Provide sequence number, source port number and destination port number of second
segment between hosts A and B.............................................................................................7
5.2 Provide acknowledgement number, source port number and destination port number in
first arriving segment.............................................................................................................7
5.3 Provide acknowledgement number when second segment arrives first...........................7
Bibliography...............................................................................................................................8

SUBNETTING AND IP ADDRESSING2
Question 1: Subnet Classification
1.1 Network addresses for subnets of the figure
It is assumed that there 56 hosts are being connected by each of the subnets between
A and D. Here subnet E is responsible for ensuring connections between the two routers and
hence will only require to IP addresses.
Therefore, the five bits of the five subnet addresses are:
Subnet A - a.b.c.000 /26
Subnet B - a.b.c.064 /26
Subnet C - a.b.c.128 /26
Subnet D - a.b.c.192 /26
Subnet E - a.b.(c + 1).000 /30
1.2 Subnet addresses when number of hosts between subnets A-D is 21
The answer changes if total number of hosts connected by the subnets A-D becomes 21. The
new answer is: