SubnetMask

HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\ interface-name

Data type

Range

Default value

REG_DWORD

(A space-delimited list of dotted decimal subnet masks.)

0.0.0.0

Description

Specifies the subnet mask for the IP address specified in the value of IPAddress or DhcpIPAddress . This entry, which can be changed by the user, overrides the DHCP-configured values for the subnet mask.

The subnet mask is determined by two entries, DhcpSubnetMask , which is configured by DHCP, and SubnetMask , which you can configure. If the value of SubnetMask is not 0.0.0.0, it overrides the value of DhcpSubnetMask .

Related Entries

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DhcpIPAddress

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DhcpSubnetMask

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IPAddress