Question: In a DMVPN deployment, how does GRE work in conjunction with IPsec? GRE is used for multipoint tunnels, while IPsec is used for point -

In a DMVPN deployment, how does GRE work in conjunction with IPsec?
GRE is used for multipoint tunnels, while IPsec is used for point-to-point tunnels.
The GRE header is placed outside of the IPsec header to facilitate multicasting support.
The IPsec header is placed outside the GRE header to facilitate secure communications.
They are both involved in the support of multicast and multiprotocol traffic.

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