Cisco 7604

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Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
OL-4266-08
Chapter 34 Understanding Cisco IOS ACL Support
Guidelines and Restrictions for Using Layer 4 Operators in ACLs
A more detailed example follows:
ACL1
... (dst port) gt 10 permit
... (dst port) lt 9 deny
... (dst port) gt 11 deny
... (dst port) neq 6 permit
... (src port) neq 6 deny
... (dst port) gt 10 deny
ACL2
... (dst port) gt 20 deny
... (src port) lt 9 deny
... (src port) range 11 13 deny
... (dst port) neq 6 permit
The Layer 4 operations and LOU usage is as follows:
• ACL1 Layer 4 operations: 5
• ACL2 Layer 4 operations: 4
• LOUs: 4
An explanation of the LOU usage follows:
• LOU 1 stores “gt 10” and “lt 9”
• LOU 2 stores “gt 11” and “neq 6”
• LOU 3 stores “gt 20” (with space for one more)
• LOU 4 stores “range 11 13” (range needs the entire LOU)
Tip For additional information (including configuration examples and troubleshooting information), see the
documents listed on this page:
http://www.cisco.com/en/US/products/hw/routers/ps368/tsd_products_support_series_home.html