Stupid Question maybe?

Wed Dec 19 14:54:34 UTC 2018

I am wondering how a netmask could be not contiguous when the network portion of the address must be contiguous.  I suppose a bit mask could certainly be anything you want but a netmask specifically identifies the network portion of an address.

Steve

> I seem to remember that before the advent of VLSM and CIDR there was 
> no requirement for the 1 bits in the netmask to be contiguous with no 
> intervening 0 bits and there was always someone who tested it out on a 
> production network just to prove a point (usually only once)