Nortel BCM 3.7, Manual

Page: 119 / 1004

Setting system security compatibility levels 119
Programming Operations Guide
Setting system security compatibility levels
Use the Security screen to set authentication, signing, encryption, and other security-related
settings. Some of these settings depend on the Windows operating system used by client
workstations.
1
Click the keys beside BCM and System .
2 Click on Security .
The Security screen appears in the right frame.
Figure 25 System security level settings
3
The following table describes the fields. Set the fields to the values that best fit your system
requirements and that accommodate compatibility issues with interconnecting users or
services.
!
Security note:
The default se
t
tings define a mid-level of security which
accommodates Windows 95/98/Me operating systems. If you would like to set a higher
level of security, ensure that all the computers that will be used for client access have
upgraded to at least Windows NT4, 2000 or XP.
Table 4 Security settings
Attribute Value Description
Authentication
Compatibility LM&NTLM response -
refuse NTLMv2 session
security
LM & NTLM response
NTLM response only
NTLMv2 response only
NTLMv2 response only -
refuse LM
Default: LM & NTLM response
This setting determines the type of authentication protocol required by
your system during interactions with client applications.
The default, LM & NTLM response, maintains compatibility with all
Windows OS versions.
Any of the other settings enforce a more secure authentication protocol,
and will prevent access from computers running Windows 95/98/Me,
unless you install the directory services client on the client computer.