tacacs

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Rob Cuttell

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Apr 13, 2004
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While trying to learn about a Cisco series 1900 switch, I enabled TACACS, (whatever that is!) Now when I try to enter Privileged Mode instead of asking for a password, the console says, "No IP address". As I am unable to get into Privileged Mode I am stuck! Any ideas?
 
Joined
Aug 12, 2000
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TACACS is used for AAA services. If you turn it on it will go looking for a TACACS server to authenticate you against.

Is the switch new or used? Did you use an existing config? I am thinking along the lines that it was set to authenticate users against a TACACS database. It is fairly common for users to set a router or switch up to authenticate users then lose communication with the TACACs server, so locking out all the users.

Personally I would just turn it back off.

TACACS (Terminal Access Control Access Control System)
AAA (Authentication, Authorization and Accounting)
 
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