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Configuration Guide - IP Service

S7700 and S9700 V200R013C00

This document describes the configurations of IP service, including IP address, ARP, DHCP, 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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Configuring Anycast Addresses for Interfaces

Configuring Anycast Addresses for Interfaces

Context

IPv6 anycast addresses are allocated from the unicast address space. An anycast address identifies a group of network interfaces, which usually belong to different nodes. When using anycast addresses, pay attention to the following points:

  • You can use anycast addresses as destination addresses only.
  • Packets addressed to an anycast address are delivered to the nearest interface identified by the anycast address, depending on the routing protocols used.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run ipv6

    IPv6 packet forwarding is enabled on the switch.

    By default, IPv6 packet forwarding is disabled.

  3. Run interface interface-type interface-number

    The specified interface view is displayed.

  4. (Optional) On an Ethernet interface, run undo portswitch

    The interface is switched to Layer 3 mode.

    By default, an Ethernet interface works in Layer 2 mode.

  5. Run ipv6 enable

    The IPv6 function is enabled on the interface.

    By default, the IPv6 function is disabled on an interface.

  6. Run ipv6 address { ipv6-address prefix-length | ipv6-address/prefix-length } anycast

    An IPv6 anycast address is configured for the interface.

Verifying the Configuration

  • Run the display ipv6 interface [ interface-type interface-number | brief ] command in any view to check IPv6 information about a specified interface.

  • Run the display this ipv6 interface command in the interface view to check IPv6 information about the current interface.

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Updated: 2019-04-20

Document ID: EDOC1100065743

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