Using Access Control Lists for Security 309

Creating an IP ACE

1In the ACL Setup page of the Create ACL wizard, click New. A list of ACE types appears.

2Select New IP ACE. The Create IP ACE dialog box appears.

3In the Action list, select Permit to allow access if the conditions in the ACE are matched, or Deny to refuse access if the conditions are matched.

4If you select Permit, in the CoS box, specify a class-of-service (CoS) level for packets:

Packet Priority

 

MAP CoS Queue

Desired

CoS Value

Assigned

 

 

 

Background

1 or 2

Class 3

Best effort

0 or 3

Class 2

Video

4 or 5

Class 1

Voice

6 or 7

Class high

 

 

 

By default, the CoS level is -1, which indicates that class of service is not specified.

5To enable counting of packets filtered by an ACL, select Enable Hit Count.

6In the Source IP box, type the source IP address and source wildcard mask in classless interdomain routing (CIDR) notation (for example, 10.10.10.10/16).

A wildcard mask is a 32-bit quantity used with the IP address to determine which bits in the address to ignore when compared with another IP address. Source and destination IP addresses and corresponding wildcard masks determine whether to forward or filter packets.

The ACL checks the bits in IP addresses that correspond to zeros in the mask, but does not check the bits that correspond to ones. The zero bit must start at the beginning of the wildcard mask and must be contiguous.

For example, if you specify 10.2.3.4/24, the source wildcard mask is 0.0.0.255.

To specify any IP address, use 0.0.0.0/0.

Page 309
Image 309
HP Manager Software manual Creating an IP ACE