Protection from unauthorized access
24
6.6
Access Control Lists (ACL).
Basic - L3P
Release
4.0
11/07
6.6.6 Configuring priorities with IP ACLs
Example: Prioritizing Multicast streams.
X Assign priority 6 to the Multicast streams with the IP Multicast destination
addresses 239.1.1.1 to 239.1.1.255 and
X Assign priority 5 to the Multicast streams with the IP Multicast destination
addresses 237.1.1.1 to 237.1.1.255 and
Example: Extended ACL with prioritizing using the Simple Network Manage-
ment Protocol (layer 4)
enable Switch to the Priviledged EXEC mode.
configure Switch to the Configuration mode.
access-list 102 permit ip
any 239.1.1.1 0.0.0.255
assign-queue 6
access-list 102 permit ip
any 237.1.1.1 0.0.0.255
assign-queue 5
Create the extended ACL 102 with the first rule.
This rule assigns priority 6 to the IP Multicast desti-
nation addresses 239.1.1.1 with the mask
0.0.0.255.
Add another rule to the ACL 102. This rule assigns
priority 5 to the IP Multicast destination addresses
237.1.1.1 with the mask 0.0.0.255.
exit Switch to the Priviledged EXEC mode.
show ip access-lists 102 Displays the rules of ACL 102.
ACL ID: 102
Rule Number: 1
Action......................................... permit
Match All...................................... FALSE
Protocol....................................... 255(ip)
Destination IP Address......................... 239.1.1.1
Destination IP Mask............................ 0.0.0.255
Assign Queue................................... 6
Rule Number: 2
Action......................................... permit
Match All...................................... FALSE
Protocol....................................... 255(ip)
Destination IP Address......................... 237.1.1.1
Destination IP Mask............................ 0.0.0.255
Assign Queue................................... 5