Which two statements about ADVPN are true? (Choose two.)
Which two statements about ADVPN are true? (Choose two.)
In ADVPN, the auto-discovery-receiver must be set to enable on the spokes to allow automatic discovery of other spokes and the establishment of direct spoke-to-spoke tunnels. Additionally, ADVPN supports NAT for on-demand tunnels, allowing the creation of dynamic tunnels across NAT devices.
study guide p.331
A,B and C are all correct here.
somehow B is also correct
B is not entirely true. Initially, spoke-to-spoke traffic may pass through the hub until a dynamic tunnel is established directly between the spokes. Therefore, spoke-to-spoke traffic may temporarily go through the hub until the direct tunnel is created. D is incorrect because the configuration of routing in ADVPN involves more than just enabling 'add-advpn-route'.
A and C are correct Study Guide 7.2 Page 331