Cisco Headend System Release 2.7 Installation Guide

 

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4035749 Rev B 

It is possible to summarize directives for individual hosts on the same network to 
single directives per network. 
For example, assume you have the following directives: 

The two Deny directives are written in CIDR format and represent any IP address 
between 192.168.0.1 and 192.168.255.254 (for the former), as well as IP addresses 
between 64.0.0.1 and 64.255.255.254 (for the latter). 
There are a few addresses from the 147.191.126.x networks and the 24.40.x.x 
networks. To summarize the addresses in the 147.191.126.x networks, assume a 24 
bit subnet mask (255.255.255.0).  The single directive would be: 

To summarize the 24.40.x.x networks, assume a 16 bit subnet mask (255.255.0.0).  
This directive would be: 

In this example, you would only need to add the following 4 directives to represent 
the same 11 directives: 

It is important to verify with your network administrator that your summarized 
directives are appropriate for your network. In the proceeding example, we have 
simplified the config files, but we have opened up access to the PIMS and BOSS Web 
services to larger numbers of IP addresses. With the original directives, only 9 hosts 
were allowed to connect: