multiple-choice: one way ppp auth chap

From: ying chang (ying_c@xxxxxxxxxxx)
Date: Mon Apr 08 2002 - 23:14:17 GMT-3


   
Sorry about beating the dead horse. I need help to get this one down. What
is your choice in case you are asked to do "one way ppp authentication"? The
"debug ppp auth" result is at the bottom of each case, I know most people
would choose B, but I feel a little bit uneasy on mutual authentication
taking place when r2 calls r1:

A. r1 - ppp auth chap callback
   r2 - ppp auth chap

   result: r1 call r2 => r2 challenge r1
           r2 call r1 => r2 challenge r1
----------------------------------------------
B. r1 - ppp auth chap callin
   r2 - ppp auth chap

   result: r1 call r2 => r2 challenge r1
           r2 call r1 => mutual authentication
----------------------------------------------
C. r1 - ppp auth chap callin
   r2 - ppp auth chap but r2 is not allowed to call r1

   result: r1 call r2 => r2 challenge r1
----------------------------------------------
D. r1 - ppp auth chap callin
   r2 - no ppp auth chap statement

   result: r1 call r2 => no authentication
           r2 call r1 => r1 challenge r2
-----------------------------------------------

Thanks,
Chang



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