Exercise regarding to working with IP Addresses
Questions
1.
What are
two main components of an IP address?
2.
In a
block of addresses,
we know the
IP address of one host
is 25.34.12.56/16. What is the network address, first address and the last
address in the block?
3.
Find the
range of address in following blocks.
I.
17.34.16.0/23
II.
180.34.64.64/30
III.
123.56.77.32/29
IV.
200.17.21.128/27
4.
You are
given the network address 175.200.0.0; you are required to have 4 subnets. What
is the minimum number of Host Bits can you take in to the Network Bits for this
purpose? Write down the addresses of 4 subnets.
Write the subnet mask for the network.
5.
An
organization is granted the block 16.0.0.0 in class A. The administrator wants
to create 500 subnets.
I.
Find the subnet
mask.
II.
Find the
number of addresses in each subnet.
III.
Find the
first and last address in the first subnet.
IV.
Find the
first and last address in the last subnet.
6.
An
organization is granted the block 130.56.0.0 in class B. The administrator
wants to create 1024 subnets.
I.
Find the
subnet mask.
II.
Find the number of addresses in each subnet.
III.
Find the
first and last address in the first subnet.
IV.
Find the
first and last address in the last subnet (subnet 1024).
7.
An
organization is granted the block 211.17.180.0 in class C. The administrator
wants to create 32 subnets.
I.
Find the
subnet mask.
II.
Find the number of addresses in each subnet.
III.
Find the
first and the last address in the first subnet.
IV.
Find the
first and the last address in the last subnet (subnet 32).
Answers
1.
Network
part and Host Part
2.
Network
address- 25.34.0.0/16,
1st address 25.34.00000000.00000001 25.34.0.1/16
Last address 25.34.11111111.11111110 25.34.255.254/16
3.
I.
Subnet mask
11111111.11111111.11111110.00000000 host part
17.34.00010000.00000001 17.34.16.1 first address
17.34.00010001.11111110 17.34.17.254 last address
II.
Subnet
mask
11111111.11111111.11111111.11111100 host part
180.34.64.11111101 180.34.64.65 first address
180.34.64.11111110 180.34.64.66 last address
III.
Subnet mask
11111111.11111111.11111111.11111000 host part
123.56.77.00100001 123.56.77.33 first address
123.56.77.00100110 123.56.77.38 last address
IV.
Subnet
mask
11111111.11111111.11111111.11100000 host part
200.17.21.10000001 200.17.21.129 first address
200.17.21.10011110 200.17.21.158 last address
4.
175.200.00000000.00000000
Network part Host part
175.200.00000000.0 175.200.0.0/18
175.200.01000000.0 175.200.64.0/18
175.200.10000000.0 175.200.128.0/18
175.200.11000000.0 175.200.192.0/18
5.
I.
500 subnets, 9 bits should be taken from
host part.
II.
Number of host bits remain=24-9=15
III.
First address,
first subnet
16.0.0.00000001 16.0.0.1
Last address, first subnet
16.0.01111111.11111110
16.0.127.254
IV.
First
address, last subnet
16.11111111.100000000.00000001 16.255.128.1
Last address, last subnet
16.11111111.11111111.11111110 16.255.1255.254
6.
I.
1024 subnets, 10 bits should be taken from
host part.
II.
Number of host bits remain=16-10=6
III.
First
address, first subnet
130.56.0.00000001 130.56.0.1
Last address, first subnet
130.56.0.00111110
130.56.0.62
IV.
First address, last subnet
130.56.1111111.11000001 130.56.255.193
Last address, last subnet
130.56.1111111.11111110 130.56.255.254
7.
I.
32 subnets, 5 bits should be taken from host
part.
II.
Number of host bits remain=8-5=3
III.
First address, first subnet
211.17.180.00000001
211.17.180.1/29
Last address, first subnet
211.17.180.00000110 211.17.180.6/29
IV.
First address, last subnet
211.17.180.11111001 211.17.180.249/29
Last address, last subnet
211.17.180.11111110 211.17.180.254/29