A network administrator added a new spoke site with dynamic IP on the DMVPN network. Which configuration command passes traffic on the DMVPN tunnel from the spoke router?
option C is correct
https://community.cisco.com/t5/security-knowledge-base/unable-to-pass-traffic-on-the-dynamic-multipoint-vpn-tunnel-with/ta-p/3111776#:~:text=If%20you%20configure%20the%20ip,such%20as%20a%20dial%20environment.
Non-Unique Registrations
If you’re experiencing DMVPN downtime due to changing public IP addresses of your DMVPN spokes, apply the ip nhrp registration non-unique interface configuration command to the DMVPN tunnel interface. This command will reduce the recovery time to less than a minute. Faster recovery is harder to achieve as the router has to execute a number of steps following a physical interface flap:
Install new static routes to the hub sites;
Create IPSec session with the hub sites;
Register new public IP address with NHRP;
Establish routing adjacency.
You can fine-tune steps 1-3 on the spoke router; step 4 sometime requires coordinated changes throughout the network.
https://blog.ipspace.net/2010/09/dmvpn-non-unique-nhrp-registrations.html
seems right:
https://yurmagccie.wordpress.com/2016/06/07/dmvpn/
Search for 'no-unique'
upvoted 1 times
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