Monday, 23 July 2012

Slash Notation

- Many purpose of slash notation, one of it is policy configuration.

- It also know as CIDR(Classess Inter-Domain Routing) notation.

- CIDR is a compact way to show or write a subnet mask.

- How to use slash notation: -> <ipaddress>/<subnet mask>

- How to find subnet mask number:
1. Convert the decimal representation of the subnet mask to a binary representation.
2. Count each "1" in the subnet mask. The total is the subnet mask number.

- Example:
IP Address: 192.68.42.23
Subnet mask: 255.255.255.0

1. Convert the subnet mask to binary = 11111111.11111111.11111111.00000000
2. Count each "1" in the subnet mask = 24
3. Here the result: 192.168.42.23/24

- Table:

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1 comment:

  1. Unknown10 October 2014 at 05:23

    thanks!!! It really helps me to understand in very simple way the concept of subnet mask.
    Thank! :)

    ReplyDelete

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