From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Fri Jul 23 2004 - 16:54:27 GMT-3
Radu,
PPP authentication is a one-way process. If you only want one
router to initiate a CHAP challenge or PAP request, simply do not put
the "ppp authentication" command on the remote end.
Here are examples of how one-way PAP and CHAP work. These
examples illustrate R4 requesting authentication first by PAP and then
by CHAP. R5 will not authenticate R4 under any circumstance.
**PAP**
Rack1R4:
username Rack1R5 password CISCO
!
interface bri0/0
encapsulation ppp
ppp authentication pap
Rack1R5:
interface bri0/0
encapsulation ppp
ppp pap sent-username Rack1R5 password CISCO
**CHAP**
Rack1R4:
username Rack1R5 password CISCO
!
interface bri0/0
encapsulation ppp
ppp authentication chap
Rack1R5:
username Rack1R4 password CISCO
!
interface bri0/0
encapsulation ppp
HTH,
Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
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> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> Radu Pavaloiu
> Sent: Friday, July 23, 2004 2:39 AM
> To: ccielab@groupstudy.com
> Subject: Ppp chap
>
> Hi,
>
> I need some help to understand how works " ppp authentication chap
> callout " How can I do a router who places the call be only the router
> that send the challenge ?
>
>
>
> Thanks,
>
>
>
>
> \'''/
> (o o)
> --------------oOOO--(_)--------------------------------------
> Radu Pavaloiu If There is no way
> Network Engineer let's Make One
>
> CCNP,CCDP,MCSE
> 302-2658
> radu.pavaloiu@connex.ro
> -----------------------------------------oOOO---------------
> |__|__|
> || ||
>
>
>
>
>
>
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