A DMVPN single hub topology is using IPsec + mGRE with OSPF.
What should be configured on the hub to ensure it will be the designated router?
A DMVPN single hub topology is using IPsec + mGRE with OSPF.
What should be configured on the hub to ensure it will be the designated router?
To ensure that the hub router becomes the designated router (DR) in a DMVPN single hub topology using OSPF, you need to configure the OSPF priority of the hub router to be greater than 1. OSPF uses the priority value to determine which router becomes the DR. The router with the highest priority value wins the election to become the DR. Therefore, setting the OSPF priority to a value greater than 1 increases the likelihood of the hub router being elected as the designated router.
A priority of 0 means a router will not participate in DR/BDR election.
The given answer is correct. o means never DR, 1 is the default, highest wins
In a DMVPN (Dynamic Multipoint Virtual Private Network) single hub topology with OSPF, to ensure that the hub router becomes the designated router (DR) for the OSPF network, you need to configure the OSPF priority of the hub router to be greater than 0. OSPF uses the priority value to determine which router becomes the DR. The router with the highest priority becomes the DR. So, the correct option is: D. OSPF priority greater than 1 Setting the OSPF priority to a value greater than 1 will increase the likelihood of the hub router becoming the designated router in the OSPF network. Typically, setting the priority to 1 means the router is not eligible to become the DR, so it should be set to a value greater than 1 to become the DR.
D is correct
Classic misdirect question - the question really is: how to force a router to be the DR.