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Configuration Guide - IP Service

CloudEngine 8800, 7800, 6800, and 5800 V200R002C50

This document describes the configurations of IP Service, including IP address, ARP, DHCP, DNS, IP performance optimization, IPv6, DHCPv6, and IPv6 DNS.
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(Optional) Configuring DHCPv6 Relay Options

(Optional) Configuring DHCPv6 Relay Options

Context

Some DHCPv6 servers can allocate IPv6 addresses and other network parameters to clients according to the client location information. The DHCPv6 protocol defines the Interface-ID option and Remote-ID option that can record the client location information, including the inbound interface on the device that receives DHCPv6 Request packets and DUID information of clients. If the device functions as a DHCPv6 relay agent, the Interface-ID option or Remote-ID option can be added in DHCPv6 packets.

After the Interface-ID option or Remote-ID option is configured to be added in DHCPv6 packets, the device adds the Interface-ID option or Remote-ID option in DHCPv6 Request packets sent by clients according to the configuration, constructs Relay-Forward packets, and sends the packets to the DHCPv6 server. The DHCPv6 server allocates IPv6 addresses and other network parameters to clients according to the options, and sends Relay-Reply packets to the DHCPv6 relay agent. After receiving the Relay-Reply packets, the DHCPv6 relay agent removes the Interface-ID option or Remote-ID option, and forwards the packets to clients or other relay agents.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run dhcpv6 remote-id format { default | user-defined text }

    The Remote-Id option format is configured.

    By default, the Remote-ID option uses the default format.

  3. Run interface interface-type interface-number

    The interface view is displayed.

  4. Run dhcpv6 { interface-id | remote-id } insert enable

    The interface is enabled to add relay options to DHCPv6 messages.

    By default, DHCPv6 relay agents do not add relay options to DHCPv6 messages.

  5. Run commit

    The configuration is committed.

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Updated: 2019-03-21

Document ID: EDOC1000166635

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