I have just implemented an IAS server on a Windows 2k3 SP1 member server to authenticate VPN clients which connect to our firewall (NetScreen ns-25). Everything is OK except for the users whose password length is more than 15 characters. Following you can view the IAS log for such users
Event Type: Warning
Event Source: IAS
Event Category: None
Event ID: 2
Date: 17/12/05
Time: 1:42:21 PM
User: N/A
Computer: server
Description:
User test was denied access.
Fully-Qualified-User-Name = ss\test
NAS-IP-Address = 132.186.6.148
NAS-Identifier = <not present>
Called-Station-Identifier = <not present>
Calling-Station-Identifier = <not present>
Client-Friendly-Name = VPN-Remote
Client-IP-Address = 132.186.6.148
NAS-Port-Type = Virtual
NAS-Port = 155
Proxy-Policy-Name = Use Windows authentication for all users
Authentication-Provider = Windows
Authentication-Server = <undetermined>
Policy-Name = <undetermined>
Authentication-Type = PAP
EAP-Type = <undetermined>
Reason-Code = 16
Reason = Authentication was not successful because an unknown user name or
incorrect password was used.
For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 2e 05 07 80 ...€
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