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Configuration Guide - VPN

S9300, S9300E, and S9300X V200R010C00

This document describes the VPN configuration procedures and provides configuration examples.
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Binding Interfaces to a VPN Instance

Binding Interfaces to a VPN Instance


A VPN instance has been created and the IPv6 address family has been enabled for the VPN instance.


  • After configuring a VPN instance on a PE, bind the interface that belongs to the VPN to the VPN instance. If the interface belonging to the VPN is not bound to the VPN instance, the interface functions as a public network interface and cannot forward VPN data.
  • An interface becomes a private network interface after being bound to a VPN instance. You must configure an IP address for the interface so that the PE can exchange routing information with its connected CE.
  • After an interface is bound to a VPN instance, configuration of Layer 3 features (IPv4 and IPv6 features) including IP addresses and routing protocols is deleted from the interface.
  • When you disable an address family (IPv4 or IPv6 address family) in a VPN instance, the address family is deleted from the interface. If no address family is configured on the interface, the interface is unbound from the VPN instance.

Perform the following steps on the PEs:


  1. Run:


    The system view is displayed.

  2. Run:

    interface interface-type interface-number

    The view of the interface to be bound to a VPN instance is displayed.

  3. (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.

  4. Run:

    ip binding vpn-instance vpn-instance-name

    The interface is bound to the VPN instance.

  5. Run:

    ipv6 enable

    IPv6 is enabled on the interface.

    private network interface

  6. Run:

    ipv6 address { ipv6-address prefix-length | ipv6-address/prefix-length }

    An IPv6 address is configured for the interface.

    Some Layer 3 features such as route exchange between the PE and CE can be configured only after an IPv6 address is configured for the private network interface on the PE.

Updated: 2019-08-21

Document ID: EDOC1000142068

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