Explicitly accept a limited set of prefixes (in the first term) and reject all others (in the second term):
- policy-options {
- policy-statement internet-in {
-
- term 1 {
-
- from {
- route-filter 192.168.231.0/24 exact accept;
- route-filter 192.168.244.0/24 exact accept;
- route-filter 192.168.198.0/24 exact accept;
- route-filter 192.168.160.0/24 exact accept;
- route-filter 192.168.59.0/24 exact accept;
- }
- }
-
- term 2 {
-
- then {
- reject;
- }
- }
- }