Please help: ptp links addresses

--- On Tue, 25 Jun 96 16:01:41 +0100  Mike Norris <mnorris at dalkey.hea.ie> 
wrote:

>1- using a /30 subnet for each link:
>   in this way both ends of the link have a unique address (binary
>   01 and 10), but two addresses (binary 00 and 11) cannot be used,
>   so 50% of the address space used is wasted. This should be
>   avoided if possible because the address space required is
>   really large.

The usage is actually 75%, as there are effectively three addresses:
the two ends (00 and 01) and the broadcast address for the network
(11).  10 is the unused address.

Mike
-----------------End of Original Message-----------------

 Actually, if you are using Cisco solely, you can always define "ip 
subnet-zero", and use broadcast AND network addresses. No loss :-)

 Cheers,

  Sincerely,            \'"'/
     Barak Engel       ( o o )
---------------------ooOO-^-oOOo----------
Engel Barak, NetVision WAN team    BE-RIPE
E-mail: barak at netvision.net.il
Date: 6/26/96          Time: 8:49:40 AM
Phone: +972 4 8550330  Fax: +972 4 8550345
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