Operating System Microsoft Windows 2000 tcp/ip implementation Details
Parameters Configurable from the User Interface
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Parameters Configurable from the User InterfaceThe following parameters are created and modified automatically by the NCPA as a result of user-supplied information. There should be no need to configure them directly in the registry. DefaultGatewayKey: Tcpip\Parameters\Interfaces\interface Value Type: REG_MULTI_SZ—list of dotted decimal IP addresses Valid Range: Any set of valid IP addresses Default: None Description: This parameter specifies the list of gateways to be used to route packets that are not destined for a subnet that the computer is directly connected to, and for which a more specific route does not exist. This parameter, if it has a valid value, overrides the DhcpDefaultGateway parameter. There is only one active default gateway for the computer at any time, so adding multiple addresses is only done for redundancy. See the “Dead Gateway Detection” section in this paper for details. DomainKey: Tcpip\Parameters\Interfaces\interface Value Type: REG_SZ—character string Valid Range: Any valid DNS domain name Default: None Description: This parameter specifies the DNS domain name of the interface. In Windows 2000, this and NameServer are per-interface parameters, rather than system-wide parameters. This parameter overrides the DhcpDomain parameter (filled in by the DHCP client), if it exists. EnableDhcpKey: Tcpip\Parameters\Interfaces\interface Value Type: REG_DWORD—Boolean Valid Range: 0, 1 (false, true) Default: 0 (false) Description: If this parameter is set to 1 (true), the DHCP client service attempts to use DHCP to configure the first IP interface on this adapter. EnableSecurityFiltersKey: Tcpip\Parameters Value Type: REG_DWORD—Boolean Valid Range: 0, 1 (false, true) Default: 0 (false) Description: If this parameter is set to 1 (true), IP security filters are enabled. See TcpAllowedPorts, UdpAllowedPorts, and RawIPAllowedPorts. To configure these values, on the Start menu, point to Settings, then click Network and Dial-up Connections, right-click Local Area Connection, and then click Properties. Select Internet Protocol (TCP/IP), and click Properties, then click Advanced. Click the Options tab, select TCP/IP filtering, and click Properties. HostnameKey: Tcpip\Parameters Value Type: REG_SZ—character string Valid Range: Any valid DNS hostname Default: The computer name of the system Description: This parameter specifies the DNS host name of the system, which is returned by the hostname command. IPAddressKey: Tcpip\Parameters\Interfaces\interface Value Type: REG_MULTI_SZ—list of dotted-decimal IP addresses Valid Range: Any set of valid IP addresses Default: None Description: This parameter specifies the IP addresses of the IP interfaces to be bound to the adapter. If the first address in the list is 0.0.0.0, the primary interface on the adapter is configured from DHCP. A system with more than one IP interface for an adapter is logically multihomed. There must be a valid subnet mask value in the SubnetMask parameter for each IP address that is specified in this parameter. To add parameters with Regedt32.exe, select this key and type the list of IP addresses, pressing Enter after each one. Then go to the SubnetMask parameter, and type a corresponding list of subnet masks. NameServerKey: Tcpip\Parameters\Interfaces\interface Value Type: REG_SZ—a space delimited list of dotted decimal IP addresses Valid Range: Any set of valid IP address Default: None (blank) Description: This parameter specifies the DNS name servers that Windows Sockets queries to resolve names. In Windows 2000, this and the DomainName are per-interface settings. PPTPFilteringKey: Tcpip\Parameters\Interfaces\interface Value Type: REG_DWORD—Boolean Valid Range: 0, 1 (false, true) Default: 0 (false) Description: This parameter controls whether PPTP filtering is enabled on a per-adapter basis. If this value is set to 1, the adapter accepts only PPTP connections. This reduces exposure to hack attempts if the adapter is connected to a public network, such as the Internet. RawIpAllowedProtocolsKey: Tcpip\Parameters\Interfaces\interface Value Type: REG_MULTI_SZ—list of IP protocol numbers Valid Range: Any set of valid IP protocol numbers Default: None Description: This parameter specifies the list of IP protocol numbers for which incoming datagrams are accepted on an IP interface when security filtering is enabled (EnableSecurityFilters = 1). The parameter controls the acceptance of IP datagrams by the raw IP transport, which is used to provide raw sockets. It does not control IP datagrams that are passed to other transports (for example, TCP). An empty list indicates that no values are acceptable. A single value of 0 indicates that all values are acceptable. The behavior of a list containing the value 0 mixed with other, nonzero values is undefined. If this parameter is missing from an interface, all values are acceptable. This parameter applies to all IP interfaces that are configured on a specific adapter. SearchListKey: Tcpip\Parameters Value Type: REG_SZ—space delimited list of DNS domain name suffixes Valid Range: 1-50 Default: None Description: This parameter specifies a list of domain name suffixes to append to a name to be resolved through DNS if resolution of the unadorned name fails. By default, only the value of the Domain parameter is appended. This parameter is used by the Windows Sockets interface. See also the AllowUnqualifiedQuery parameter. SubnetMaskKey: Tcpip\Parameters\Interfaces\interface Value Type: REG_MULTI_SZ—list of dotted decimal IP addresses Valid Range: Any set of valid IP addresses. Default: None Description: This parameter specifies the subnet masks to be used with the IP interfaces bound to the adapter. If the first mask in the list is 0.0.0.0, the primary interface on the adapter is configured using DHCP. There must be a valid subnet mask value in this parameter for each IP address specified in the IPAddress parameter. TcpAllowedPortsKey: Tcpip\Parameters\Interfaces\interface Value Type: REG_MULTI_SZ—list of TCP port numbers Valid Range: Any set of valid TCP port numbers Default: None Description: This parameter specifies the list of TCP port numbers for which incoming SYNs are accepted on an IP interface when security filtering is enabled (EnableSecurityFilters = 1). An empty list indicates that no values are acceptable. A single value of 0 indicates that all values are acceptable. The behavior of a list containing the value 0 mixed with other, nonzero values is undefined. If this parameter is missing from an interface, all values are acceptable. This parameter applies to all IP interfaces configured on a specified adapter. UdpAllowedPortsKey: Tcpip\Parameters\Interfaces\interface Value Type: REG_MULTI_SZ—list of UDP port numbers Valid Range: Any set of valid UDP port numbers Default: None Description: This parameter specifies the list of UDP port numbers for which incoming datagrams are accepted on an IP interface when security filtering is enabled (EnableSecurityFilters = 1). An empty list indicates that no values are acceptable. A single value of 0 indicates that all values are acceptable. The behavior of a list containing the value 0 mixed with other, nonzero values is undefined. If this parameter is missing from an interface, all values are acceptable. This parameter applies to all IP interfaces configured on a specified adapter. Directory: pub -> doc doc -> Assembly language/machine language/coding tutorial part one by scatt index prefix part one : The Basics An Introduction. 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