What is the purpose of the Subnet Mask?

[Colton Abbe]

What is a subnet mask?

[Rodney]

Using subnetting, data can be routed more efficiently and securely by dividing a network into smaller networks (subnets). In the absence of a subnet mask, IP addresses are identical to network addresses.A subnet mask is used to divide an IP address into two parts.

[Jake_J]

One part classifies the host (computer), and the other portion classifies the network to which it fits.

[Connor]

The 3 default subnet masks are as follows:

a) 255.0. 0.0 for Class A.

b) 255.255. 0.0 for class B.

c) 255.255. 255.0 for Class C.

[KelvinSmith]

Home systems use the default subnet mask of 255.255. 255.0.

[Myles Ace]

Can two devices have the same IP address?

[Blake Acy]

Except for your router blips, two devices must never get the same IP address.

[Colton Abbe]

Ok. It was quite an interesting discussion.