Redistribution Notes – AD Manipulation
- Manipulating administrative distance (AD) is another way to help with a mutual redistribution scenario.
- EIGRPs has different ADs for internal and external (redistributed) routes
- OSPF and RIP have the same AD no matter where the route orginated.
- This means that routes redistributed into OSPF may be used instead of a local RIP route.
- AD 110 (OSPF) beats 120 (RIP) every time.
- The distance subcommand allows you to change the AD on specific routes from specific neighbors.
- This example changes the AD of the route to 10.0.0.0/16 advertised from 18.104.22.168 to 121.
- This will make this router prefer a RIP route to the same destination.
ip access-list standard RIP-ROUTES permit 10.0.0.0 0.255.255.0 ! router ospf 1 distance 121 22.214.171.124 0.0.0.0 RIP-ROUTES
Corrections are encouraged.
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Why have you used the wildcard mask “0.255.255.0” in the access-list ? Should it not be 0.0.255.255 ??