Thanks for the info. I used a vitual-template for the t-1's and a
group-async for the modems and enabled multli-link for them. I'm not sure if
that will work for ISDN, I'm using analog only.

""Michael Williams""  wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Yes.  Setup your AAA like so:
>
> aaa new-model
> aaa authentication login default group radius enable
> aaa authentication ppp use-radius group radius
>
> When configuring the interface, say Dialer1, you configure the
> encapsulation, then configure the authentication like so:
>
> interface Dialer1
>  description Interface for dial-in users
>  encapsulation ppp
>  ppp authentication [chap | pap] use-radius
>
> This will tell the incoming ppp dial-up to authenticate using radius.  By
> simply not including the "ppp authentication" command on the T1s interface
> configuration, that should make it where the T1s don't require any
> authentication, thus the AAA authentication we defined in AAA doesn't
affect
> those interfaces.
>
> I don't know if you're using a Virtual-Template to form your multilink or
if
> you're configuring your multilink bundle (T1s) manually.  A problem I
> haven't been able to solve is this:  I'm using Virtual-Template to
multilink
> my two T1s, but I'd also like to configure a different Virtual-Template
(if
> that's even possible) for the Dialer interface to use so that people
dialing
> in with ISDN (BRI) can bond their B channels together for 128K pipe. But I
> haven't found a way to use virtual-templates in a way that lets you define
> more than one "use" for it.
>
> I've got a config of a 3640 I setup with two T1s using PPP Multilink on
the
> same router that's also configured with 18 MICA digital modems with T1-PRI
> w/built-in CDU (only 18 lines active tho) to accept either analog or ISDN
> BRI digital calls.  If you would like, I can e-mail a copy.
>
> HTH,
> Mike W.




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