Hi all, I was trying to figure out whether CHAP protocol is supported by freeradius-client library or not. I am reaching two contradictory conclusions using my own dubious analysis. Hence the request for help. If my understanding is correct, (and I might be totally wrong here), then the PAP protocol sends the user passwords in clear text over the wire. On the other hand, CHAP protocol uses a shared secret between the client and server to encrypt the passwords being sent over the wire. Since I do see the use of shared secret in freeradius-client library configuration file, I assume that the library does support CHAP. However, in the source code of the library, I notice that the section doing the CHAP processing is turned off using the #if 0 directive. Meaning CHAP is not being used. What gives? Also, after wading through the archives of this mailing list, I came across the post of one user who had asked exactly the same question, that is to say, whether CHAP is supported or not. The answer he got was that, "at this stage, better not use CHAP". This is an ambiguous reply as far as I am concerned because it evades a direct answer. Please reply Tarkshya