I
RON
S
HIELD
W
HITE
P
APER
W
HITE
P
APER
: 802.1X P
ORT
A
UTHENTICATION
W
ITH
M
ICROSOFT
’
S
A
CTIVE
D
IRECTORY
Testing The Client Connection
To test the Windows client, connect the device to the Foundry device’s 802.1X-enabled port. After a short period,
the port and the client’s NIC will synchronize and the 802.1X EAP-MD5 authentication process will begin. As the
Client completes its synchronization process, the Network Icon in the task bar will show the Local Area
Connection speed. The EAP-MD5 port authentication process will begin and the user will be prompted to enter
their Local Area Connection credentials (username and password).
• Enter the User Name and Password information
required to authenticate to the IAS Active Directory
server.
• The Logon Domain information is not required.
Figure 18. Local Area Connection Credential Request
If the IAS Active Directory server validated the authentication credentials entered, the client is allowed onto the
network. If the Active Directory server did not validate the authentication credentials, a message similar to the
following will be displayed:
The EAP-MD5 authentication will timeout and the user will be
prompted for their authentication credentials again.
Figure 19. Failed 802.1X Authentication Message
March 2003
©2003 Foundry Networks, Inc.
16
Version 1.0.0
All Rights Reserved.
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