r2507#sh ip protocols 
Routing Protocol is "nhrp"
  Maximum path: 0
  Routing Information Sources:
    Gateway         Distance      Last Update
  Distance: (default is 0)

Routing Protocol is "ospf 1"
  Outgoing update filter list for all interfaces is not set
  Incoming update filter list for all interfaces is not set
  Router ID 192.168.255.1
  It is an autonomous system boundary router
  Redistributing External Routes from,
    static, includes subnets in redistribution
  Number of areas in this router is 1. 1 normal 0 stub 0 nssa
  Maximum path: 4
  Routing for Networks:
    172.17.1.0 0.0.0.255 area 0
 Reference bandwidth unit is 100 mbps
  Routing Information Sources:
    Gateway         Distance      Last Update
    192.168.255.5        110      06:40:23
    192.168.255.3        110      00:00:07
    192.168.255.2        110      00:00:23
  Distance: (default is 110)