Route redistribution configuration can often be very complex, especially when redistributing at multiple points in the network. While there are a plethora of things that can go wrong is redistribution is not implemented correctly, e.g. routing loops, this section will only delve into reasons why OSPF may not advertise external or redistributed routes. These reasons include:
- Omitting the subnets Keyword during Redistribution
- Incorrectly Filtering Outbound Advertisements
When redistributing routes into OSPF, by default only Classful subnets are redistributed unless the subnets keyword is included in the configuration. When the . . .
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