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Why am I unable to ping from one spoke to another spoke in a hub and spoke configuration using multipoint (sub) interfaces?

April 26, 2017configuration Hub interfaces Multipoint ping Spoke sub

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Why am I unable to ping from one spoke to another spoke in a hub and spoke configuration using multipoint (sub) interfaces?

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A. You cannot ping from one spoke to another spoke in a hub and spoke configuration using multipoint interfaces because the mapping for the other spoke’s IP address is not done automatically. Only the hub’s address is automatically learned by way of Inverse Address Resolution Protocol (INARP). If you configure a static map using the frame-relay map command for the IP address of another spoke to use the local data-link connection identifier (DLCI), you can ping the address of the other spoke.