Network Implementation Guide › Specify the NBA Policy › Specifying IP Address and Port Filters › Example Address and Port Filters › Masked Address Examples

Masked Address Examples

<element value="123"/>

The NBA uses an implied mask to apply a filter to packets sent to or from IP addresses 123.0.0.0 to 123.255.255.255. In binary form, this gives the following values. Masked bits are shown in italics:

01111011.00000000.00000000.00000000

to

01111011.11111111.11111111.11111111

<element value="10/7"/>

The NBA applies a filter to packets sent to or from IP addresses 10.0.0.0 to 11.255.255.255. In binary form, this gives the following values. Masked bits are shown in italics:

00001010.00000000.00000000.00000000

to

00001011.11111111.11111111.11111111

<element value="10.64/12:128-1023"/>

The NBA applies a filter to packets sent to or from IP addresses 10.64.0.0 to 10.79.255.255. But note the filter is only applied to packets sent from or to ports 128 to 1023.

In binary form, this gives the following values. Masked bits are shown in italics:

00001010.01000000.00000000.00000000

to

00001010.01001111.11111111.11111111