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Configuration Guide - Security

S7700 and S9700 V200R011C10

This document describes the configurations of Security, including ACL, reflective ACL, local attack defense, MFF, attack defense, traffic suppression and storm control, ARP security, port security, DHCP snooping, ND snooping, PPPoE+, IPSG, SAVI, URPF, keychain, separating the management plane from the service plane, security risks.
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Adjusting the Step of ACL Rules

Adjusting the Step of ACL Rules


During routine maintenance, you may need to add rules to an ACL to meet new service requirements. If the default step 5 is used (the system allocates 5, 10, 15... as rule IDs), you can insert only four rules (rules 6, 7, 8, and 9) between neighboring rules. If you need to insert more than 4 rules between neighboring rules, increase the step to a value greater than 6. Then the system reallocates IDs (6, 12, 18...) to the rules, and you can insert more than four rules (rules 7, 8, 9, 10, and 11) between neighboring rules.

For details about the step, see Step.


Basic ACL6 and advanced ACL6 do not support step configuration, and use a step of 1.


  1. Run system-view

    The system view is displayed.

  2. You can create a numbered or named ACL.

    • Run the acl [ number ] acl-number [ match-order { auto | config } ] command to create a numbered ACL and enter the ACL view.

    • Run the acl name acl-name [ advance | basic | link | ucl | user | acl-number ] [ match-order { auto | config } ] command to create a named ACL and enter the ACL view.

    By default, no ACL exists on the device.

    For details about the numbered and named ACLs, see ACL Classification.

  3. Run step step

    The step is set.

    The default step is 5.

Updated: 2019-09-23

Document ID: EDOC1000178319

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