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Hi, I'm using a Cisco 53xx NAS to authenticate users from RADIUS. Upon
each and every authentication Cisco tries to log in user dnis:1234
with password cisco. I've tried disabling it with aaa preauth -> dnis
bypass default, which only ceased normal operation and gave busy tones
to end users. Maybe I should use something entirely different to
disable it? Thanks.

rihad <> writes:
>Hi, I'm using a Cisco 53xx NAS to authenticate users from RADIUS. Upon
>each and every authentication Cisco tries to log in user dnis:1234
>with password cisco. I've tried disabling it with aaa preauth -> dnis
>bypass default, which only ceased normal operation and gave busy tones
>to end users. Maybe I should use something entirely different to
>disable it? Thanks.

Do you need VPDN in any fashion?

If not,

no vpdn enable

That will get rid of the VPDN preauth that is happening.