MicroNugget: What is a Dynamic Multi-Point Virtual Private Network?

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In this video, Keith Barker covers dynamic multipoint VPNs. DMP VPNs are becoming increasingly popular, especially among companies that have multiple geographically separated branches and offices. See what makes a DMP VPN awesome, how they operate, and why they're so valuable.

The idea of a virtual private network is probably familiar to most IT personnel. When you want to treat the local networks of separated offices like they're connected to a local network, a VPN can help do that. It starts by building a generic router encapsulation (GRE) tunnel between any branch routers and the headquarters router - basically just a logical pipe across the internet. You can even secure the traffic that passes through that pipe with IPsec.

But when you need the branches to communicate directly with one another, a basic configuration may not work. Since any traffic from one branch to the other passes through the headquarters router, eventually you'll probably reach unsustainable levels of overhead and bandwidth. A dynamic multi-point VPN alleviates that concern, enabling the first branch router to build a direct GRE IPsec connection between itself and the other router, with the direction and guidance of the headquarters router.

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Thanks for the comment!

Best wishes,

Keith

KeithBarker

Man super quick and informative explanation on how DMVPN works. Great start for building knowledge on this and related subjects. Thanks Keith and CBT!

ajmn