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Honey Chaurasia
Beginner

Can anyone tell me why RADIUS uses two UDP port while TACACS+ uses only one ?

I dont know the answer. Someone asked me in an interview.

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Tarik Admani
Advocate

You can enable separate servers for authentication/authorization, and use separate servers for accounting.

However that is the way the protocol was designed there isn't a clear explanation what drove that decision.

It would be a great question to ask in your thank you letter.

Thanks

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