Task 4.2 DMVPN Overlay Connectivity ( SHARED) key word
while practicing the DMVPN overlay , onlu R17 and 18 can establish the tunnel R16 is not.
this is untill i add the keyword SHARED on R18 at the TUNNEL PROTECTION command line , both R17 and 18 came up.
in the solution guide the shred key word is not there, although the solution works fine.
can anyone advise on this