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All spokes and Hub site having internet connection.

Spoke to Spoke sites will establish the tunnel on demand, if they sense traffic between the Spoke sites. IPsec is an optional (IPsec over GRE) in case deployment extra encryption layer.Īll tunnels interface must using Multipoint mGRE tunnel mode GRE Multipoint. Since, DMVPN is an internet overlay technology.īranch sites (Spoke Site) should have a permanent GRE tunnel with the Central site (Hub). (Recommend Static).Īll Spoke and Hub site have internet connectivity.

Static or dynamic public IP on it WAN Interface. Must have static IP address on its WAN interface.īranch sites (Site-A and Site-B) acts as the Spoke routers called them DMVPN Client. The HUB Site Router acts as the DMVPN Hub called it DMVPN Server. This Network design have 2 branch sites, One Hub Site and Data Center.Īll branch sites having DMVPN connectivity and Data center have dedicated MPLS (Point to Point) link connected to Hub site.

In this article we are deploying DMVPN solution on Cisco 3725 Router Version 12.4(15)T14. Cisco routers is an ideal choice for DMVPN. The beauty of DMVPN is quick and fast move technology gear where you can quickly built numerous sites under a single umbrella technology without investing extra money and time. If you are new bee in networking and DMVPN is new technology for you, Please refer the link DMVPN HUB and Spoke that cover basic fundamental on DMVPN before proceeding with DMVPN configuration. Even Public Cloud network (Azure, AWS) also support DMVPN with help Cisco CSR1000V.ĭMVPN technology introduced by Cisco System which is very scalable and less Router configurations complexity is required in connecting branch offices network to a central HQ Hub site. DMVPN technology is wider solution fit for all type network small, medium and enterprise network environment.