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  • Jaroslav Antos thinks this is interesting:

Cisco IOS requires that the configured prefix-length, ge-value, and le-value meet the following requirement: prefix-length <= ge-value <= le-value. Otherwise, Cisco IOS rejects the ip prefix-list command.


Cover of CCNP Routing and Switching ROUTE 300-101: Official Cert Guide


actually this is the condition: len < ge-value <= le-value