300-320 · Question #474
Which is backup WAN connected with secured connection?
The correct answer is B. GRE over IPSec. GRE over IPSec combines a GRE tunnel (which provides the encapsulation and supports multicast/routing protocols) with IPSec encryption (which provides confidentiality, integrity, and authentication). This makes it a straightforward, secure backup WAN solution - the GRE tunnel…
Question
Which is backup WAN connected with secured connection?
Options
- ADMVPN
- BGRE over IPSec
How the community answered
(15 responses)- A7% (1)
- B93% (14)
Explanation
GRE over IPSec combines a GRE tunnel (which provides the encapsulation and supports multicast/routing protocols) with IPSec encryption (which provides confidentiality, integrity, and authentication). This makes it a straightforward, secure backup WAN solution - the GRE tunnel carries the traffic and IPSec secures it. DMVPN is a more scalable, dynamic VPN architecture often used for large deployments with many spokes, and while it also uses IPSec for encryption, its primary distinction is dynamic spoke-to-spoke tunneling rather than simply being a secured backup WAN link.
Topics
Community Discussion
No community discussion yet for this question.