Sorry for the lame question, but I gotta know :|
We know that subnet -1 (all ones) is valid to config in IOS and that 0
is OK with
ip subnet-zero.
For purposes of CCNA 2, do we assume that subnet 0 and -1 are valid,
vs. CCNA 1 (where they were not) for questions like,
"How many subnets can we have with this mask?
"
?
Does the test make it clear in preliminary text?
The archives seem to have conflicting answers.
The Cisco Press ICND book (McQuerry, 1-57870-111-2) doesn't address the
issue head on, but simply shows tables with (2^(n-1))-2 subnets.
The Cisco Press 640-507 Cert Guide (Odom, 0-7357-0971-8) clearly says
that 2^(n-1) is correct and yet points out that 0 is only valid with
"ip subnet-zero" !
Does anyone know the *definitive* answer for CCNA 2.0 ?
-------------------------------------------------
Tks | <mailto:[EMAIL PROTECTED]>
BV | <mailto:[EMAIL PROTECTED]>
Sr. Technical Consultant, SBM, A Gates/Arrow Co.
Vox 770-623-3430 11455 Lakefield Dr.
Fax 770-623-3429 Duluth, GA 30097-1511
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