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PPP, CHAP & NetBlazer

shewchun
shewchun asked
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Last Modified: 2012-05-04
I'm trying to get Linux PPP working with CHAP to a NetBlazer.  When I connect to the NetBlazer I see something like:

login: <enter my user id>
Challenge:0B8F6433A6936433:                                                    
Response:

What is the "Challenge" and "Response" all about?  I'm guessing it has something to do with CHAP, but I thought CHAP was handled down in one of the PPP negotiation protocols like LCP.  In any event, it doesn't work.  I setup my "secrets" file and all that but pppd starts up and
just times out without doing anything.  What am I missing here?  I have no problems getting Linux PPP to work with a different NetBlazer which is not using CHAP.

Thanks
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Commented:

      Hello

The challenge is send to the remote unit (you !) and your chap software calculates the response with a common algorithm used by the both sides.

The server where you want to login then compare your response to the expected result. If they match the authentification is acknowledged otherwise the connection is terminated.

You probably didn't compile your linux kernel with new ppp chap support.

check your configuration makefile.

good luck


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