Where Is a VPN Headend Located in a Network?
Short answer
D WAN edge
Question
Key Takeaways
The question tests your understanding of where VPN concentrator or headend devices fit in a three-tier network hierarchy; the trap is confusing the core layer's high-speed backbone role with the edge-layer role of securing external VPN traffic.
VPN headends are network devices that terminate VPN tunnels for remote users and site-to-site connections; they are typically found at the WAN edge, where external traffic enters the enterprise network. CompTIA Network+ candidates overwhelmingly voted for WAN edge (90% consensus) in this exam question.
Common mistake: Choosing Core (C) is the most common mistake because candidates think the VPN headend is a central processing point. However, the core layer is designed for high-speed internal forwarding, not for terminating external VPN tunnels; a VPN headend must sit at the network boundary to securely manage ingress and egress traffic.
Expert Analysis
Why the Answer Is Correct
The VPN headend (often a VPN concentrator or router with VPN capability) is the device that terminates incoming VPN tunnels from remote users or branch offices. It is placed at the edge of the network, typically just behind or alongside the firewall, to process secure traffic before it enters the internal network. The WAN edge is the layer that connects the enterprise to external networks such as the Internet, MPLS, or carrier links, making it the natural location for VPN termination. Comments [1] and [2] both highlight that the headend is at the WAN edge, with comment [2] adding that it is positioned behind the firewall and before the router.
The Network+ infrastructure model separates access, distribution, and core layers for internal campus design, while WAN edge is where external connectivity lives. VPN traffic is external, so it must terminate at the edge. Comment [4] also notes that a VPN becomes the default gateway for remote users, reinforcing that it is the first point of entry into the enterprise network.
Why the Other Options Are Wrong
Option A (Distribution) is a middle layer that routes between access switches and the core; it is not designed to terminate external VPN tunnels. Option B (Access) is the layer that connects end-user devices like PCs and phones; VPN headends are not placed at the access layer. Option C (Core) is the high-speed backbone that carries internal traffic between distribution blocks; placing a VPN headend there would expose internal infrastructure to unauthenticated external traffic before any security filtering. Only D (WAN edge) matches the boundary location where a VPN concentrator can securely accept and decrypt VPN tunnels.
Community Comment Notes
Comments from the community strongly support D, with three upvotes for comments describing a VPN headend as located at the WAN edge, often near or behind the firewall. Comment [3] references CBT Nuggets and agrees that the concentrator is situated next to or behind the firewall. One dissenting comment [5] argued for Core, but that reasoning confuses central processing with physical placement in a hierarchical network, and it contradicts real-world deployment. The vast majority (90% of voters) chose D, and the expert consensus aligns with standard network architecture principles.
Official Reference
https://www.comptia.org/certifications/network
This link opens the official vendor documentation in a new tab.
Exam Strategy
On the Network+ exam, when you see 'VPN headend' or 'VPN concentrator,' immediately think 'edge'—specifically the WAN edge, where the network connects to external service providers. Eliminate access, distribution, and core by asking which layer handles external traffic; only the WAN edge does, so that is your answer.
Community Votes
100% of anonymous learners picked answer D. Votes are pick records left by other test-takers — they are not the verified answer.
Discussion 5 contributions
Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.
From public community threads 5
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fartphilosopher89 👍 3 Answered DA VPN concentrator is typically placed at the edge of the network, behind the firewall, and before the router, to securely manage VPN traffic for remote users and site-to-site connections.
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agfencer 👍 3 Answered DA VPN headend is typically located at the Wide Area Network (WAN) edge
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BigDazza_111 👍 2 Answered DGoing with D, VPN concentrator is typically situated next too, or just behind the FW. According to CBT Nugs
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Hundo_954 👍 1 Answered CA VPN headend is typically located in the core layer of a network. This is where the central processing for VPN connections occurs, handling incoming VPN traffic from various sites or remote users. Distribution: Middle-tier, routing between access and core layers. Access: End-user connectivity to the network. Core: High-speed, central part of the network. WAN edge: Interface between an enterprise network and external networks.
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kinny4000 👍 1 Answered DA VPN becomes the default gateway of the entire network, therefore I'm going to say WAN edge.
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