default route over frame relay
if you have two routers 1 and 2 connected over frame relay.
the connection is fine, and you are able to ping eachother.
if R1 has a loopback interface 10.10.10.10/24
and R2 has looopback interface 220.127.116.11/24
if you setup dynamic or static route from R1 to R2 loopback interface, then you can ping it.
but if setup default route like IP Route 0.0.0.0 0.0.0.0 interfce f0/0
then it will not work.
why is that ????