In a FlexVPN deployment, the spokes successfully connect to the hub, but spoke-to-spoke tunnels do
not form.
Which troubleshooting step solves the issue?
A . Verify the spoke configuration to check if the NHRP redirect is enabled.
B . Verify that the spoke receives redirect messages and sends resolution requests.
C . Verify the hub configuration to check if the NHRP shortcut is enabled.
D . Verify that the tunnel interface is contained within a VRF.
Answer: B
Explanation:
Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/sec_conn_dmvpn/configuration/15-mt/sec-conn-dmvpn-15-mt-book/sec-conn-dmvpn-summ-maps.pdf
On receiving the redirect, Spoke1 initiates a resolution request for Host2 over the point-to-point tunnel interface (the same interface over which it received the redirect). The resolution request traverses the routed path (Spoke1-hub-spoke2). On receiving the resolution request, Spoke2 determines that it is the exit point and needs to respond to the resolution request. https://www.cisco.com/en/US/docs/ios-xml/ios/sec_conn_ike2vpn/configuration/15-2mt/sec-flex-spoke.html
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