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CLI-based Configuration Guide - VPN

AR100, AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R010

This document describes VPN features on the device and provides configuration procedures and configuration examples.
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Configuring a Layer 3 VXLAN Gateway

Configuring a Layer 3 VXLAN Gateway

Context

A VBDIF interface is configured on a VXLAN Layer 3 gateway to forward packets across network segments. You do not need to create a VBDIF interface for communication between users in the same network segment.

If end users in a VXLAN site need to access the Internet or communicate with end users in another VXLAN site, a VXLAN Layer 3 gateway needs to be deployed to provide end users with Layer 3 services.

In Figure 13-16, after you create a logical Layer 3 VBDIF interface and configure an IP address for the VBDIF interface, the VBDIF interface functions as the gateway for tenants in the BD to forward packets at Layer 3 based on the IP address. Each BD has only one VBDIF interface.

To ensure that users in different network segments can communicate with each other, ensure that the default gateway address is the IP address of the VBDIF interface on the VXLAN Layer 3 gateway.

Figure 13-16  Layer 3 VXLAN gateway networking

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run interface vbdif bd-id

    A VBDIF interface is created and the VBDIF interface view is displayed.

    NOTE:

    The number of the VBDIF interface must match an existing BD ID.

  3. Run ip address ip-address { mask | mask-length } [ sub ]

    An IP address is configured for the VBDIF interface to implement Layer 3 communication.

    By default, no IP address is configured for a VBDIF interface.

  4. (Optional) Run mac-address mac-address

    A MAC address is configured for the VBDIF interface.

    By default, the MAC address of a VBDIF interface is the system MAC address.

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Updated: 2019-08-07

Document ID: EDOC1100033725

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