What is DMVPN dual hub dual cloud?
What is DMVPN dual hub dual cloud?
The dual cloud option also has two hubs but we will use two DMVPN networks which means that all spoke routers will get a second multipoint GRE interface. In this lesson we’ll take a look at the dual hub dual cloud option. This is the best option for DMVPN dual hub.
How to configure DMVPN hubs R21 and R22?
In order to get communication between the two hubs, we need to configure R21 and R22 to be spoke for the DMVPN network 1. To do this, we configure another tunnel interface on both of them. Here is the configuration on R21. Same configuration on R22, except for the IP address.
What subnet does DMVPN use?
The DMVPN network will use subnet 172.16.1.0/24 where hub1 will be the primary hub. Spoke routers will register themselves with both hub routers. The configuration above is a basic DMVPN hub configuration that I have used in all my examples so far.
What is the configuration portion of Hub1 DMVPN?
Bellow is the configuration portion of Hub1 DMVPN : The network 172.16.1.0/24 is used in this example to represent the internet IP addressing ( in a real networks implementations this will be a dynamic or static public IPs in the spokes and a public static IP in the Hub side). Hub1 internet IP address: 172.16.1.1
How do I add redundancy to my DMVPN network?
To add redundancy to our DMVPN network we need to add another hub router. There are two options for this: With the single cloud option we use a single DMVPN network but we add a second hub. The spoke routers will use only one multipoint GRE interface where we configure the second hub as a next hop server.
What is the difference between dual cloud and dual spoke routers?
The spoke routers will use only one multipoint GRE interface where we configure the second hub as a next hop server. The dual cloud option also has two hubs but we will use two DMVPN networks which means that all spoke routers will get a second multipoint GRE interface.
