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Configuration Guide - IP Service
S1720, S2700, S5700, and S6720 V200R011C10

This document describes the configurations of IP Service, including IP address, ARP, DHCP, DHCP policy VLAN, DNS, mDNS gateway, mDNS relay, UDP Helper, IP performance optimization, IPv6, DHCPv6, IPv6 DNS, IPv6 over IPv4 tunnel, and IPv4 over IPv6 tunnel.

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(Optional) Configuring the DHCPv6 Data Saving Function

(Optional) Configuring the DHCPv6 Data Saving Function


When the device functions as a DHCPv6 or DHCPv6 PD server, you can configure the DHCPv6 data saving function to prevent data loss caused by device faults. After the DHCPv6 data saving function is enabled, the device periodically saves DHCPv6 data. The data includes the last data recording time, address pool name, client DUID, IAID, address and prefix bound to the client DUID and IAID, conflicted address, and conflict detection time.


  1. Run system-view

    The system view is displayed.

  2. Run dhcpv6 server database url [ write-delay interval ]

    The DHCPv6 data saving function is configured.

    By default, the DHCPv6 data saving function is disabled.

    You can specify write-delay to modify the DHCPv6 data saving interval. By default, the device saves DHCPv6 data every 86400 seconds.

Updated: 2020-02-26

Document ID: EDOC1000178170

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