You are designing a network using multipoint GRE tunnels and need to be able to detect when
connectivity between the GRE tunnel endpoints is broken. Which statement is true about
configuring keepalives for multipoint GRE tunnels?
A.
The keepalive timer values on the routers must have the same value.
B.
Both routers must support GRE tunnel keepalives.
C.
No configuration is required to detect when connectivity is broken between the GRE tunnel
endpoints.
D.
GRE tunnel keepalives will not detect when connectivity is broken between the GRE tunnel
endpoints.