No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

NE20E-S2 V800R010C10SPC500 Configuration Guide - IP Services 01

This is NE20E-S2 V800R010C10SPC500 Configuration Guide - IP Services

Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Overview of DHCPv6

Overview of DHCPv6

Dynamic Host Configuration Protocol for IPv6 (DHCPv6) is a stateful protocol that assigns IPv6 addresses or prefixes and other configuration parameters to hosts.

Introduction

IPv6 has made it possible to have virtually unlimited IP addresses by increasing the IP address length from 32 bits to 128 bits. This increase in IP address length requires efficient IPv6 address space management and assignment.

IPv6 provides the following address allocation modes:
  • Manual configuration. IPv6 addresses/prefixes and other network configuration parameters are manually configured, such as the DNS server address, network information service (NIS) server address, and Simple Network Time Protocol (SNTP) server address.
  • Stateless address allocation. A host uses the prefix carried in a received Router Advertisement (RA) message and the local interface ID to automatically generate an IPv6 address.
  • Stateful address autoconfiguration using DHCPv6. DHCPv6 address allocation can be implemented in any of the following modes:
    • DHCPv6 stateful address autoconfiguration. A DHCPv6 server automatically configures IPv6 addresses/prefixes and other network configuration parameters, such as the DNS server address, NIS server address, and SNTP server address.
    • DHCPv6 stateless address autoconfiguration. A host uses the prefix carried in a received RA message and the local interface ID to automatically generate an IPv6 address. The DHCPv6 server assigns configuration parameters other than IPv6 addresses, such as the DNS server address, NIS server address, and SNTP server address.
    • DHCPv6 Prefix Delegation (PD). IPv6 prefixes do not need to be manually configured for the downstream routers. The DHCPv6 prefix delegation mechanism allows a downstream router to send DHCPv6 messages carrying the IA_PD option to an upstream router to apply for IPv6 prefixes. After the upstream router assigns a prefix that has less than 64 bits to the downstream router, the downstream router automatically subnets the delegated prefix into /64 prefixes and assigns the /64 prefixes to the links attached to IPv6 hosts through RA messages. This mechanism implements automatic configuration of IPv6 addresses for IPv6 hosts and hierarchical IPv6 prefix delegation.
Translation
Download
Updated: 2019-01-02

Document ID: EDOC1100055376

Views: 22018

Downloads: 48

Average rating:
This Document Applies to these Products

Related Version

Related Documents

Share
Previous Next