ip prefix-list DRoute seq 5 permit 0.0.0.0/0
! since there is an implicit deny the above should allow only the default to 
! pass but it is not happening

router rip
 version 2
 network 10.0.0.0
 default-information originate
 distribute-list DRoute out
 no auto-summary

do sh ip prefix det
Prefix-list with the last deletion/insertion: DRoute
ip prefix-list DRoute:
   count: 1, range entries: 0, sequences: 5 - 5, refcount: 2
   seq 5 permit 0.0.0.0/0 (hit count: 0, refcount: 1)

我在这里错过了什么，这应该很简单？