Hi, I am studying for my CCNA and Net plus exam but something that gets me confused is about the difference between AAA and 802.1x, and triple a is about tacacs and radius right? I can configure in a router and this router acts like the client while my aaa server acts obviosly like the server, but with 802.1 x is the idea about the client being the supplicant, the router like the authenticator and the auth. server like server itself, Also the configuration is different. Could you help me please?
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Difference between AAA and 802.1 X
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@alex-gómez said in Difference between AAA and 802.1 X:
Hi, I am studying for my CCNA and Net plus exam but something that gets me confused is about the difference between AAA and 802.1x, and triple a is about tacacs and radius right?
802.1x is port based authentication for network access control. It provides user access control by controlling the access ports. For example, in 802.1x, a switch used for access has ports defined in 2 states:
uncontrolledorcontrolleduncontrolledmeans that access to that port is unrestrictedcontrolledmeans that access to the port must be authorized. If a this port becomesuncontrolled, access is denied.
802.1x authentication determines these states for us and is a Layer 2 authentication process. It typically requires a RADIUS server.
I can configure in a router and this router acts like the client while my aaa server acts obviosly like the server, but with 802.1 x is the idea about the client being the supplicant, the router like the authenticator and the auth. server like server itself, Also the configuration is different. Could you help me please?
802.1x and AAA have the same components involved.
- Client
- Authenticator (Access Switch for 802.1x)
- Authentication Server
With 802.1x, the "authenticator" is not a Layer 3 device like a router but normally an access layer switch that supports 802.1x at Layer 2.
Cordially,
Ronnie Wong
Edutainer Manager, ACI Learning [ITPRO]
*if the post has answered the question, mark as solved.
**All "answers" and responses are offered "as is" and my opinion. There is no implied service, support, or guarantee by ITProTV. -
Hi Ronnie thanks for your reply, so basically the differences are that 802.1x is port based and the authenticator in 802.1x not being a layer 3 device?, my last question is, could I apply AAA and 802.1x in wireless ? or only 802.1x
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Both... are usually are!
Cordially,
Ronnie Wong
Edutainer Manager, ACI Learning [ITPRO]
*if the post has answered the question, mark as solved.
**All "answers" and responses are offered "as is" and my opinion. There is no implied service, support, or guarantee by ITProTV.
