IPv6 will be disabled until a deliberate transition strategy has been implemented. Use of IPv6 transition technologies will be disabled.

From Windows 2008 Member Server Security Technical Implementation Guide

Part of IPv6 Transition

Associated with IA controls: ECSC-1

SV-29955r1_rule IPv6 will be disabled until a deliberate transition strategy has been implemented. Use of IPv6 transition technologies will be disabled.

Vulnerability discussion

Any nodes’ interface with IPv6 enabled by default presents a potential risk of traffic being transmitted or received without proper risk mitigation strategy and therefore a serious security concern.

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Add the following registry key. To disable IPv6 on all interfaces: Registry Hive: HKEY_LOCAL_MACHINE Subkey: System\CurrentControlSet\Services\Tcpip6\Parameters Value Name: DisabledComponents Type: REG_DWORD Value: 0xffffffff To disable all IPv6 tunneling interfaces: Registry Hive: HKEY_LOCAL_MACHINE Subkey: System\CurrentControlSet\Services\Tcpip6\Parameters Value Name: DisabledComponents Type: REG_DWORD Value: 0x1 Discrepancies in documentation have resulted in several changes to this requirement. See Microsoft article 929852 for details of the DisabledComponents registry value.

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