Configuring And Assigning A Numbered, Standard Acl - HP ProCurve 6120G/XG Manual

IPv4 Access Control Lists (ACLs)
Configuring and Assigning an ACL
Table 9-7.
IP Address Used In an ACL

Configuring and Assigning a Numbered, Standard ACL

To Configure:
Configuring Named ACLs "Configuring a Named ACL" on page 9-51
Configuring Extended,
Numbered ACLs
A standard ACL uses only source IP addresses in its ACEs. This type of ACE
is useful when you need to:
■
■
You can identify each standard ACL with a number in the range of 1 - 99, or an
alphanumeric string of up to 64 characters. The CLI command process for
using an alphanumeric string to name an ACL differs from the command
process for a numeric name. For a description of how to name an ACL with
an alphanumeric character string, refer to "Configuring a Named ACL" on page
9-51. To view the command differences, refer to table 9-1, "Comprehensive
Command Summary" on page 9-6.
9-40
Examples of CIDR Notation for Masks
Resulting ACL Mask
with CIDR Notation
18.38.240.125/15
18.38.240.125/20
18.38.240.125/21
18.38.240.125/24
18.38.240.125/32
Refer to:
"Configuring and Assigning a Numbered, Extended ACL" on page
9-45
Permit or deny traffic based on source IP address only.
Quickly control the IP traffic from a specific address, a group of
addresses, or a subnet. This allows you to isolate traffic problems
generated by a specific device, group of contiguous devices, or a
subnet threatening to degrade network performance. This gives you
an opportunity to troubleshoot without sacrificing performance for
users outside of the problem area.
0.1.255.255 The left m ost 15 bits must match; the
remaining bits are wildcards.
0.0.15.255 The leftmost 20 bits must match; the
remaining bits are wildcards.
0.0.7.255 The leftmost 21 bits must match; the
remaining bits are wildcards.
0.0.0.255 The leftmost 24 bits must match; the
remaining bits are wildcards.
0.0.0.0 All bits must match.
Meaning