Question

CIT 1614 Basic IP Addressing Lab Assignment

1. Subnet Masks and Prefix Lengths

What is the corresponding prefix length for each of the following subnet masks?

Example: 255.255.0.0 has prefix length /24

Subnet Mask	Prefix Length
255.255.255.0
255.255.128.0
255.224.0.0
255.255.255.252
255.255.255.248

What is the corresponding subnet mask for each of the following prefix lengths?

Example: /8 is subnet mask 255.0.0.0

Prefix Length	Subnet Mask
/16
/20
/30
/10
/25

2. Finding Network Addresses

For the given address and prefix length, find the network ID the address belongs to.

Example: 105.25.8.55 /12, Network Address is 105.16.0.0

Address & Prefix Length	Network Address
194.58.3.89 /24
183.108.25.93 /28
87.5.228.9 /17
217.69.81.47 /27
108.97.91.205 /30

3. Finding Broadcast Addresses

For the given address and prefix length, find the broadcast ID..

Example: 105.25.8.55 /12, Broadcast Address = 105.31.255.255

Address & Prefix Length	Broadcast Address
194.58.3.89 /24
183.108.25.93 /28
87.5.228.9 /17
217.69.81.47 /28
108.97.91.205 /30

4. Classify IP Addresses

For the given address and subnet mask, determine whether the address is a network, broadcast, or host address.

Example:

187.65.54.80, 255.255.128.0, Host

207.6.7.64.0 255.255.255.192, Network

Address & Subnet Mask	Network, Broadcast, or Host?
58.6.97.20 255.255.0.0
174.25.106.64 255.255.255.248
28.133.0.0 255.128.0.0
218.29.67.127 255.255.255.192
195.62.101.103 255.255.255.252

5. Public and Private Addresses

Determine whether the given IP address is public or private.

IP Address	Public or Private?
10.128.5.101
192.168.0.1
208.69.1.7
172.15.87.147
172.18.90.1

Answer 1

CIT 1614 Basic IP Addressing Lab Assignment

1. Subnet Masks and Prefix Lengths

What is the corresponding prefix length for each of the following subnet masks?

Example: 255.255.0.0 has prefix length /24

Subnet Mask	Prefix Length
255.255.255.0	/24
255.255.128.0	/17
255.224.0.0	/11
255.255.255.252	/30
255.255.255.248	/29

What is the corresponding subnet mask for each of the following prefix lengths?

Example: /8 is subnet mask 255.0.0.0

Prefix Length	Subnet Mask
/16	255.255.0.0
/20	255.255.240.0
/30	255.255.255.252
/10	255.192.0.0
/25	255.255.255.128

2. Finding Network Addresses

For the given address and prefix length, find the network ID the address belongs to.

Example: 105.25.8.55 /12, Network Address is 105.16.0.0

Address & Prefix Length	Network Address
194.58.3.89 /24	194.58.3.0
183.108.25.93 /28	183.108.25.80
87.5.228.9 /17	87.5.128.0
217.69.81.47 /27	217.69.81.32
108.97.91.205 /30	108.97.91.204

3. Finding Broadcast Addresses

For the given address and prefix length, find the broadcast ID..

Example: 105.25.8.55 /12, Broadcast Address = 105.31.255.255

Address & Prefix Length	Broadcast Address
194.58.3.89 /24	194.58.3.255
183.108.25.93 /28	183.108.25.95
87.5.228.9 /17	87.5.255.255
217.69.81.47 /28	217.69.81.47
108.97.91.205 /30	108.97.91.207

4. Classify IP Addresses

For the given address and subnet mask, determine whether the address is a network, broadcast, or host address.

Example:

187.65.54.80, 255.255.128.0, Host

207.67.64.0 255.255.255.192, Network

Address & Subnet Mask	Network, Broadcast, or Host?
58.6.97.20 255.255.0.0	Host
174.25.106.64 255.255.255.248	Network
28.133.0.0 255.128.0.0	Host
218.29.67.127 255.255.255.192	Broadcast
195.62.101.103 255.255.255.252	Broadcast

5. Public and Private Addresses

Determine whether the given IP address is public or private.

IP Address	Public or Private?
10.128.5.101	Private
192.168.0.1	Private
208.69.1.7	Public
172.15.87.147	Public
172.18.90.1	Public

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