Cisco 3.3 Manuel d'utilisateur Page 782

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Appendix E VPDN Processing
VPDN Process
E-2
User Guide for Cisco Secure ACS for Windows Server
78-16592-01
Figure E-1 VPDN User Dials In
2. If VPDN is enabled, the NAS assumes that the user is a VPDN user. The NAS
strips off the “username@” (mary@) portion of the username and authorizes
(not authenticates) the domain portion (corporation.us) with the ACS. See
Figure E-2.
Figure E-2 NAS Attempts to Authorize Domain
3.
If the domain authorization fails, the NAS assumes the user is not a VPDN
user. The NAS then authenticates (not authorizes) the user as if the user is a
standard non-VPDN dial user. See Figure E-3.
Corporation
VPDN user
User = mary@corporati
o
Call setup / PPP setup
ACS
RSP
ACS
Authorization request
User = corporation.us
S6646
Corporation
VPDN user
ACS
RSP
ACS
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