Prefer Local Names Allowed
Specifies whether the user has Connect and Disconnect options for the DirectAccess entry when the user clicks the Networking notification area icon.
If the user clicks the Disconnect option, NCA removes the DirectAccess rules from the Name Resolution Policy Table (NRPT) and the DirectAccess client computer
uses whatever normal name resolution is available to the client computer in its current network configuration, including sending all DNS queries to the local intranet
or Internet DNS servers. Note that NCA does not remove the existing IPsec tunnels and users can still access intranet resources across the DirectAccess server
by specifying IPv6 addresses rather than names.
The ability to disconnect allows users to specify single-label, unqualified names (such as “PRINTSVR”) for local resources when connected to a different intranet
and for temporary access to intranet resources when network location detection has not correctly determined that the DirectAccess client computer is connected
to its own intranet.
To restore the DirectAccess rules to the NRPT and resume normal DirectAccess functionality, the user clicks Connect.
If the DirectAccess client computer is on the intranet and has correctly determined its network location, the Disconnect option has no effect because the rules for
DirectAccess are already removed from the NRPT.
If this setting is not configured, users do not have Connect or Disconnect options.
At least Windows Server 2008 R2 or Windows 7
In Registry Editor we can see the following changes:
For Enabled we get:
FullKeyPath : HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\NetworkConnectivityAssistant
ValueName : NamePreferenceAllowed
Value : 1
For Disabled we get:
Value : 0