Configuring QoS
Creating IP Standard ACLs
Beginning in privileged EXEC mode, follow these steps to create an IP standard ACL for IP traffic:
Command
Step 1
configure terminal
Step 2
access-list access-list-number
permit source [source-wildcard]
or
ip access-list standard name
Step 3
end
Step 4
show access-lists
Step 5
copy running-config
startup-config
To delete an access list, use the no access-list access-list-number global configuration command.
This example shows how to allow access for only those hosts on the three specified networks. The
wildcard bits apply to the host portions of the network addresses.
Switch(config)# access-list 1 permit 192.5.255.0 0.0.0.255
Switch(config)# access-list 1 permit 128.88.0.0 0.0.255.255
Switch(config)# access-list 1 permit 36.0.0.0 0.0.0.255
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Purpose
Enter global configuration mode.
Create an IP standard ACL, repeating the command as many times as
necessary.
For access-list-number, enter the access list number. The range is 1 to 99
•
and 1300 to 1999.
Always use the permit keyword for ACLs used as match criteria in QoS
•
policies. QoS policies do not match ACLs that use the deny keyword.
For source, enter the network or host from which the packet is being sent.
•
You can use the any keyword as an abbreviation for 0.0.0.0
255.255.255.255.
(Optional) For source-wildcard, enter the wildcard bits in dotted decimal
•
notation to be applied to the source.
Define a standard IPv4 access list using a name, and enter access-list
configuration mode. The name can be a number from 1 to 99.
In access-list configuration mode, enter permit source [source-wildcard]
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
Chapter 30
Configuring QoS
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