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CCIE Practical Studies: Security (CCIE Self-Study) by Raymond Morrow, Andrew G. Mason, Dmitry Bokotey

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FAQs

Q1:Can I ping my own IP address on a multipoint interface?
A1: You cannot ping your own IP address on a multipoint Frame Relay interface because mappings are not made to your own interface. Pings to your own interface address are only successful on point-to-point subinterfaces or High-Level Data Link Control (HDLC) links because the device on the other side of the link returns the ICMP echo and echo reply packets.

You cannot ping from one spoke to another spoke in a hub-and-spoke configuration using multipoint interfaces because no mapping exists for the other spokes' IP addresses. Only the hub's address is learned via Inverse Address Resolution Protocol (IARP). If you configure a static map using the frame-relay map command for your IP ...

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