All things related to multicast

[Michael Lambert <>]

I'm working on trying to fix a 3ROX member's multicast connectivity.   
On one of their internal routers we see:

hsc-1#sh ip rpf 141.142.2.55
RPF information for jhereg.ncsa.uiuc.edu (141.142.2.55)
  RPF interface: GigabitEthernet1/1
  RPF neighbor: hsc-inet-vl998.nsog.wvu.edu (10.0.6.114)
  RPF route/mask: 157.182.0.0/16
  RPF type: unicast ()
  RPF recursion count: 0
  Doing distance-preferred lookups across tables

I could understand an RPF route of 141.142.0.0/16 or one of  
0.0.0.0/0.  However, I have no idea how their own campus network block  
could be the RPF route.  The only straw I see to grasp at is that they  
have a default gateway, but not a default route, on the router (some  
flavor of Cisco).

Any insight?

Thanks,

Michael