On Wed, 9 Jun 1999, Jules wrote:

> How does one read addresses like 172.168.10/24 or 172.16.51.50/32 ?
> In particular, what does the slash signify what does it do in the above
> case(s).

It's a shorthand.  It specifies the number of bits in the network mask.
For example:

- 172.168.10/24 is the same as 172.168.10.0/255.255.255.0 (i.e. a
classical Class C).
- 192.168.0/23 is 192.168.0.0/255.255.254.0
- 10.0.0.0/8 is 10.0.0.0/255.0.0.0
- 192.168.1.1/32 is a single address.

etc. ...

Note also that you can't specify all possible netmasks using this
shorthand notation - discontiguous ones are impossible.

This stuff make much more sense in binary form...  :)

Hope this helps.

Adrian Close                                    email:  [EMAIL PROTECTED]
Network Engineer                                phone:  +61 3 8341 2400
Australian Business Access Pty Ltd              fax:    +61 3 8341 2499
P.O. Box 302, Carlton, VIC, 3053, Australia     web:    http://www.aba.net.au

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