R3#sh run | b router
router rip
 version 2
 no validate-update-source
 timers basic 30 180 0 240
 network 180.40.0.0
 network 208.28.1.0
 neighbor 208.28.1.3
 neighbor 208.28.1.1
 maximum-paths 3  <------------ on all routers for the task
 no auto-summary