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Forum Replies

  1. What’s the name of the follow-up lesson? “In another lesson I will give you a configuration example how to implement this on a Cisco Catalyst Switch.”

    Or does it not yet exist?

  2. Hi Francesco,

    We use RADIUS and TACACS+ for both user authentication and management. For example, with wireless networks we use RADIUS for user authentication (WPA2-enterprise). This allows us to use client and server certificates and it’s a far more secure solution than using pre-shared keys only.

    For network management, it’s useful since you can centralize all your authentication instead of creating usernames/passwords on each and every router, switch, firewall, etc on your network.

    It’s used on local networks, the only time you might use it on the Internet is if you have a branch office and you want to use the RADIUS/TACACS+ server on the main site. In that case, you would use a VPN tunnel.


  3. Hi Rene,
    Which’s standard of RFC that I can follow when learning the TACACS+?
    Many thanks!

  4. Hello Thinh

    The original TACACS is defined in RFC 1492 as it is an open IETF standard. TACACS+ however was developed by Cisco so it has no corresponding RFC. Cisco developed it as an open standard so many vendors can and do use it.

    There is however a Cisco RFC TACACS+ Draft available on the IETF web site that you can check out. There are also additional drafts that have been added, the most recent of which can be found here.

    I hope this has been helpful!


  5. oh, thank you so much, i looked it out :slight_smile:

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