IFPCClientConfigSettings::SupportOldFirewallClients property

Article
08/27/2012

Applies to: desktop apps only

The SupportOldFirewallClients property gets or sets a Boolean value that indicates whether the ISA Server computer supports Firewall clients running earlier versions of the Firewall Client software.

Note This property is not applicable to Forefront TMG.

This property is read/write.

Syntax

HRESULT put_SupportOldFirewallClients(
  VARIANT_BOOL fSupportOldFirewallClients
);

HRESULT get_SupportOldFirewallClients(
  VARIANT_BOOL *pfSupportOldFirewallClients
);

' Data type: Boolean

Property SupportOldFirewallClients( _
  ByVal fSupportOldFirewallClients As VARIANT_BOOL, _
  ByVal pfSupportOldFirewallClients As VARIANT_BOOL _
) As Boolean

Property value

Boolean value that indicates whether the ISA Server computer supports Firewall clients running earlier versions of the Firewall Client software.

Error codes

These property methods return S_OK if the call is successful; otherwise, they return an error code.

Remarks

This property is read/write. Its value is initially set by the administrator during setup.

By default, ISA Server communicates with Firewall clients running the current Firewall Client software over an encrypted control channel through TCP port 1745. ISA Server can also support Firewall clients running earlier versions of the Firewall Client software, including Firewall Client for ISA Server 2000 and the Winsock Proxy client (from Microsoft Proxy Server 2.0), and Firewall clients running any version of the Firewall Client software on Windows NT Server 4.0, Windows Millennium Edition, or Windows 98, which send requests to UDP port 1745 and must use an unencrypted control channel to communicate with an ISA Server computer.

When this property is set to False (VARIANT_FALSE in C++), ISA Server listens for incoming requests from Firewall clients only on TCP port 1745. When this property is set to True (VARIANT_TRUE in C++), ISA Server listens for incoming requests from Firewall clients on both TCP port 1745 and UDP port 1745. An encrypted control channel is used for requests received on TPC port 1745 provided the EnableControlChannelEncryption property is set to True (VARIANT_TRUE in C++) (the default value), and an unencrypted control channel is used for requests received on UDP port 1745.

This property can be accessed through the Allow non-encrypted Firewall client connections check box in ISA Server Management.

Requirements

Minimum supported client	Windows Vista
Minimum supported server	Windows Server 2008 R2, Windows Server 2008 with SP2 (64-bit only)
Version	Forefront Threat Management Gateway (TMG) 2010
IDL	Msfpccom.idl
DLL	Msfpccom.dll

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