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Variable subnet Masks and netview

To: nv-l@lists.tivoli.com
Subject: Variable subnet Masks and netview
From: W.M.de.Bruin@DNB.NL
Date: Tue, 18 Apr 2000 12:51:16 +0200

Hi everybody,

We make use of variable subnet masking on some of our IP-Address ranges.
An example:    In subnet 10.1.0.0 we use the first 64 adresses as host adresses,
in other words with a mask of 255.255.255.255.
          The rest of the adresses are assigned to point-point links, with a
mask of 255.255.255.254.

What happens now is that Netview discovers host 10.1.0.4 as a network. If you
apply the 255.255.255.254 mask to this address, it is indeed a network, but in
reality it is a host. Even worse: Netview thinks that host 10.1.0.3 is a
broadcast address.

How can I convince Netview to apply a 32 bit mask to the first 65 hosts, and
another mask to the rest of the adresses in this range?

Any help appreciated.

Regards
Wouter de Bruin
Network Management Consultant

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