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CLI-based Configuration Guide - VPN

AR650, AR1600, and AR6100 V300R003

This document describes VPN features on the device and provides configuration procedures and configuration examples.
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(Optional) Enabling the Keepalive Detection Function for GRE

(Optional) Enabling the Keepalive Detection Function for GRE

Context

After the Keepalive detection function is enabled, the local device periodically sends Keepalive probes to the peer to check tunnel connectivity. If the peer is reachable, the local device receives a reply packet from the peer. Otherwise, the local device cannot receive a reply packet, and then disconnects the tunnel connection.

The Keepalive detection function takes effect on one end of the tunnel as long as this end is configured with the Keepalive detection function. The other end of the tunnel is not required to have the Keepalive detection function configured. To ensure that both ends of the tunnel can detect whether the peer is reachable, you are advised to enable the Keepalive detection function on both ends.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run interface tunnel interface-number

    The tunnel interface view is displayed.

  3. Run keepalive [ period period [ retry-times retry-times ] ]

    The Keepalive detection function is enabled for GRE.

    By default, the Keepalive detection function of GRE is disabled.

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Updated: 2019-04-12

Document ID: EDOC1100041799

Views: 34491

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