thanks for replyin..so jst gettin ospf enabled on C like:

router ospf 58

network 10.96.0.2 area 100

& network 10.96.0.1 area 100(on B)

would suffice here..no need to worry abt anything further to be redistributed/filtered on C?

also, dev B has this route ip route 10.16.0.0 255.255.0.0 10.16.1.30, den why is dev A again redistributing it in ospf with tag.

ip route 10.16.0.0 255.255.0.0 10.16.1.58 tag 43

wouldnt it cause confusion as to which route is better?