2.5 – What are Private IP Addresses

Question 1

Private IP Address

Answer 1

o used INTERNALLY & CANNOT be routed on the Internet

o Can assign to your network
o Use a router to get outside, get Internet
o Can rout them INTERNALLY
o Internal routers

Question 2

Public IP Address

Answer 2

o Are routable on the Internet & they’re given to you by your ISP
–Can ping each other

o NOT going to assign

Question 3

NON-Routable IPv4 Addresses
Private / NAT Addresses

Class A

Answer 3

First Address: 10.0.0.0

Last Address: 10.255.255.255

Question 4

NON-Routable IPv4 Addresses
Private / NAT Addresses

Class B

Answer 4

First Address: 172.16.0.0

Last Address: 172.31.255.255

Question 5

NON-Routable IPv4 Addresses
Private / NAT Addresses

Class C

Answer 5

First Address: 192.168.0.0

Last Address: 192.168.255.255

Question 6

First Address

Answer 6

o Comes from 1st Octet of the Class

Class A:
o Remove 10 block & any IP address that starts with the number 10 can be used internally

Question 7

Private IP Address: Class A

Answer 7

10.0.0.0 – 10.255.255.255
= Large company / Business

Question 8

Private IP Address: Class B

Answer 8

172.16.0.0 – 172.31.255.255
= Mid-sized businesses

Question 9

Private IP Address: Class C

Answer 9

192.168.0.0 – 192.168.255.255
= SOHO