Route Redistribution with TAG

 route-map OSPF_EIGRP deny 10
 match tag 170
!
route-map OSPF_EIGRP permit 20
 set tag 110
!
route-map EIGRP_OSPF deny 10
 match tag 110
!
route-map EIGRP_OSPF permit 20
 set tag 170
!
router eigrp 10
 redistribute ospf 100 metric 1 1 1 1 1 route-map OSPF_EIGRP
!
router ospf 100
 redistribute eigrp 10 subnets route-map EIGRP_OSPF

Ref Link: http://www.youtube.com/watch?v=NdXxPyIZ6Dc