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Cisco 3.3 User Manual

Page 496

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Chapter 13 User Databases

Windows User Database

13-12

User Guide for Cisco Secure ACS for Windows Server

78-16592-01

To determine the format of a username submitted for Windows authentication,
Cisco Secure ACS searches the username for the presence of the following two
special characters:

@ (the “at” character)

\ (the “backslash” character)

Based upon the presence and position of these two characters in the username,
Cisco Secure ACS determines username format as follows:

1.

If the username does not contain a “backslash” character and does not contain
an “at” character, Cisco Secure ACS considers the username to be
non-domain qualified. For example, the username

cyril.yang

is non-domain

qualified. For more information, see

Non-domain-qualified Usernames,

page 13-13

.

2.

If the username contains a “backslash” character that precedes any “at”
characters, Cisco Secure ACS considers the username to be domain qualified.
For example, Cisco Secure ACS considers the following usernames to be
domain qualified:

MAIN\cyril.yang

MAIN\cyril.yang@central-office

For more information, see

Domain-Qualified Usernames, page 13-14

.

3.

If the username contains an “at” character that is not preceded by a
“backslash” character, Cisco Secure ACS considers the username to be in
UPN format. For example, Cisco Secure ACS considers the following
usernames to be UPN usernames:

[email protected]

[email protected]

cyril.yang@main

cyril.yang@[email protected]

cyril.yang@main\example.com

For more information, see

UPN Usernames, page 13-14

.