secclest wrote:
> With any Cisco class you attend, it is all about class A, B and C
> addressing (fixed blocks of IP ranges).
And as of IOS 11.3 the default has been classless routing behavior.
> Your comment (in my humble opinion) "the concept of fixed blocks of
> IP ranges determined by the prefix has fallen by
> the wayside" is inaccurate.
Classful routing is dead. CIDR (Classless Inter-Domain Routing) has
obsoleted it using variable length subnet masks which eliminates the
need for classes of network numbers.
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