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Interoperation Configuration Guide

AR Router

This document provides cases for connecting AR enterprise routers to devices of other vendors.
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Dynamic Smart Virtual Private Network (DSVPN) allows the headquarters and branches or branches to dynamically establish virtual private networks (VPNs) in the Hub-Spoke model.

DSVPN implements dynamic connections between the headquarters and branches, and between branches. Branches can dynamically establish tunnels to directly exchange service data, reducing the forwarding delay and improving forwarding performance and efficiency.

On a DSVPN tunnel, data packets are encapsulated with a GRE header. DSVPN does not provide encryption, so IPSec can be deployed on the network demanding high security. Then data packets are encapsulated through the DSVPN over IPSec tunnel.

In Figure 17-1, branches use dynamic addresses to access the public network and dynamically establish Spoke-Spoke tunnels with each other for direct communication between them. In addition, multipoint Generic Routing Encapsulation (mGRE) technology allows multiple GRE tunnels to be created on one mGRE tunnel interface. DSVPN uses mGRE technology to simplify branch traffic management and configuration of GRE and IPSec.

Figure 17-1  Hub-Spoke model
Updated: 2019-05-17

Document ID: EDOC1100034005

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