In the previous posts, we discussed simple DMVPN phase 1 and DMVPN phase 2where no mechanism for data protection is used. Usually, DMVPN tunnels are built over the internet and sending our data traffic over the internet without encryption won’t be a good idea.
Hence in this post we will discuss DMVPN over IPSec and see how we can add IPsec encryption to the data, thus securing our data while it traverses the internet.
We will still use the same topology as the one we used in our earlier posts as below:
The configuration for simple DMVPN Phase is already up and running in this lab. For configuration details to bring up the simple DMVPN tunnels please refer to post for DMVPN phase 1. We were running EIGRP as the dynamic protocol for the route advertisement.
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