ip route 12.212.1.196 255.255.255.255 Serial1/0/0/20:0 tag 50
ip route 12.212.1.197 255.255.255.255 Serial1/0/0/20:0 tag 50
ip route 12.212.1.197 255.255.255.255 Serial1/0/0/3:0 tag 50

access-list 6 permit 0.0.0.0
access-list 6 permit 12.212.1.196
access-list 6 permit 12.212.1.197

route-map FILTERDEFAULT deny 10
 match ip address 6
 match tag 50
!
route-map FILTERDEFAULT permit 20
!

     12.0.0.0/32 is subnetted, 2 subnets
O E2    12.212.1.196 [110/20] via 52.51.192.114, 00:00:51, Serial0/1/0
O E2    12.212.1.197 [110/20] via 52.51.192.114, 00:00:51, Serial0/1/0