Why does wildcard mask do more than subnet mask ???

[gdamville]

Why does wildcard mask do more than subnet mask ???

[manuel.bitzi]

What do you mean exactly?

In which case? And what should be different?

[gdamville]

What does wildcard mask bring more than subnet mask ? Why subnet mask is not self-sufficient ?

[manuel.bitzi]

wildcard-bits and subnetmask are two things.

IP+Subnetmasks = Range of Subnets

IP+Wildcard-Bits = Range of Hosts

br

Manuel

[paulgear]

Subnet masks must be contiguous; wildcard masks need not be. This makes them useful in some ACLs, e.g. to create exclusions for a particular address offset in a number of subnets.