Patch to fix PPTP CHAP failure due to unknown-attribute problem

Brian Candler B.Candler at
Mon Jul 4 18:27:16 CEST 2011

On Mon, Jul 04, 2011 at 11:17:58AM -0500, freeradius developer/user identity wrote:
> Since at least 2005, the combination of PPTP and radiusclient has
> led to failure of CHAP authentication with the following errors
> appearing in syslog:
>   rc_avpair_new: unknown attribute 11
>   rc_avpair_new: unknown attribute 25

You can find the current freeradius dictionaries at

You can see that and dictionary.merit are there and
neither have spaces in the front of the lines.  Both are included from the
top-level dictionary (share/dictionary).

According to 'git log', share/ has been present since
Feb 2000. It includes attributes 11 (MS-CHAP-Challenge) and 25

share/dictionary.merit has been present since May 2004, although it doesn't
have as many attributes as in the page you linked.

Are there specific ones you are missing?

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