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CLI-based Configuration Guide - Security

AR100, AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R010

This document provides the basic concepts, configuration procedures, and configuration examples in different application scenarios of the network management feature supported by the device.
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Licensing Requirements and Limitations for DHCP Snooping

Licensing Requirements and Limitations for DHCP Snooping

Involved Network Elements

Other network elements are not required.

Licensing Requirements

DHCP snooping is a basic feature of a device and is not under license control.

Feature Limitations

When deploying DHCP snooping on a device, pay attention to the following:
  • The 4GE-2S, 4ES2GP-S, 4ES2G-S, and 9ES2 cards do not support DHCP snooping.

  • AR100&AR120&AR150&AR160&AR200&AR1200 series do not support DHCPv6 snooping.

  • DHCPv4 snooping can be configured on a Layer 2 access device and the first-hop DHCPv4 relay agent. DHCPv6 snooping can be configured on a Layer 2 access device and the first-hop DHCPv6 relay agent.
  • The DHCP-triggered ARP learning function applies only to wired users and wireless users do not support this function.
Updated: 2019-08-07

Document ID: EDOC1100034077

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