Re: all 0's or all 1's in subnet address?

patrick@value.net
Sat, 12 Oct 1996 08:51:06 -0700 (PDT)

On Fri, 11 Oct 1996, Mark Frost wrote:

>
> Hello. I'm using ComOS 3.3.3 and before I went off and considered subnetting,
> I was curious if a pm2e running 3.3.3 will allow subnet addrs using all 0's
> or all 1's. That is, if I use a subnet mask of 255.255.255.192 (a /26 block
> I believe) can I use all 4 chunks of 64 addresses (62 usable) or can I only
> use 2 of those chunks?

You can use all of them.

> One of our other pieces of network equipment currently does not support use of
> all 4 networks in this case and I wanted to see if this will also be an issue
> on the pm.

Get some equipment made in the 90's.... ;-)

Seriously though, the inability to use the first and last addresses of a
subnet has been fixed in many vendors products years ago.

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