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Configuration Guide - Security

S9300, S9300E, and S9300X 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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Verifying the DHCP Snooping Configuration

Verifying the DHCP Snooping Configuration

Prerequisites

All configurations of DHCP snooping basic functions are complete.

Procedure

  • Check the configuration and running information of DHCP snooping.

    • Run the display dhcp snooping configuration [ vlan vlan-id | interface interface-type interface-number ] command to view the DHCP snooping configuration.

    • Run the display dhcp snooping [ interface interface-type interface-number | vlan vlan-id ] command to view DHCP snooping running information.

  • Check the DHCP snooping binding table.

    • Run the display dhcp snooping user-bind { { interface interface-type interface-number | ip-address ip-address | mac-address mac-address | vlan vlan-id } * | all } [ verbose ] command to check the DHCP snooping binding table.

    • Run the display dhcpv6 snooping user-bind { { interface interface-type interface-number | ipv6-address { ipv6-address | all } | mac-address mac-address | vlan vlan-id } * | all } [ verbose ] command to check the DHCPv6 snooping binding table.

    • Run the display dhcpv6 snooping user-bind ipv6-prefix { prefix/prefix-length | all } [ verbose ] command to check the IPv6 prefix binding table.

  • Run the display dhcp snooping statistics command to check statistics on the received DHCP messages.
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Updated: 2019-04-01

Document ID: EDOC1000178410

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