PPT Slide

ISP1

ISP2

24.10.6/24

140.15.7/24

24.10.6.14

140.15.7.4

24.10.6/24

140.15.7/24

24.10/16

140.15.7/24

(auto-injected)

140.15/16

neighbor <R1> advertise-map amap non-exist-map backbone

route-map amap permit 10

match ip address 1

route-map backbone permit 10

match ip address 2

access-list 1 permit 140.15.7.0 !Advertise this when...

access-list 2 permit 140.15.0.0 !... this is not present.