[c-nsp] Net Masks

[Roland Dobbins]

On Dec 1, 2006, at 1:48 AM, Oliver Dewdney wrote:

> interface ip addresses and routing uses the first, where as ACLs  
> use the
> latter.

The wildcard masks are utilized for ACLs (not just filtering ACLs  
applied to interfaces, but ACLs used to match traffic for QoS,  
controlling distribution lists, etc.); standard netmasks are used for  
just about everything else - although there is a variation for prefix- 
lists, for example, in which one specifies the length of the match  
using CIDR notation.

-----------------------------------------------------------------------
Roland Dobbins <rdobbins at cisco.com> // 408.527.6376 voice

		All battles are perpetual.

     		   -- Milton Friedman