In anADVPN (Auto-Discovery VPN) network, adynamic VPN tunnelis establishedon-demandbetween spokes to optimize traffic flow and reduce latency.
Process:
1.Traffic Initiation:
A client behindSpoke-1sends traffic to a device behindSpoke-2.
The traffic initially flows through thehub, following the pre-established overlay tunnel.
2.Hub Detection:
Thehubdetects that Spoke-1 is communicating with Spoke-2 and determines that adirect shortcut tunnelbetween the spokes can optimize the connection.
3.Shortcut Offer:
Thehub sends a "Shortcut Offer"message to Spoke-1, informing it that a directdynamic tunnelto Spoke-2 is possible.
4.Tunnel Establishment:
Spoke-1 and Spoke-2 then negotiate and establish a directIPsec tunnelfor communication.
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A client behindSpoke-1sends traffic to a device behindSpoke-2.
The traffic initially flows through thehub, following the pre-established overlay tunnel.
Thehubdetects that Spoke-1 is communicating with Spoke-2 and determines that adirect shortcut tunnelbetween the spokes can optimize the connection.
Thehub sends a "Shortcut Offer"message to Spoke-1, informing it that a directdynamic tunnelto Spoke-2 is possible.
Spoke-1 and Spoke-2 then negotiate and establish a directIPsec tunnelfor communication.
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