WESM zl Management and Configuration Guide WT.01.XX and greater

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Access Control Lists (ACLs)
Configuring ACLs
Figure 7-4. Add Rule Screen for Standard IP ACLs
3. In the Precedence field, specify the precedence for the rule, from 1
through 5,000. The Wireless Edge Services zl Module processes rules in
ascending order (starting at 1, moving to 2, and so on).
As you assign precedence values to rules for a given ACL, consider using
nonconsecutive numbers (for example, 10, 20, 30, and so on), in case you
need to insert new rules “between” existing rules later.
4. In the Operation field, use the drop-down menu to select the operation
(deny, permit, or mark) for the rule.
Note The mark operation only takes effect if you apply this ACL to a physical
interface.
5. Optionally, check the Logging box to allow the module to keep track of
the number of packets matched to this rule.