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The Teredo IPv6 transition technology must be disabled.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-225323 | WN12-CC-000010 | SV-225323r569185_rule | Medium |
| Description |
|---|
| IPv6 transition technologies, which tunnel packets through other protocols, do not provide visibility. |
| STIG | Date |
|---|---|
| Microsoft Windows Server 2012/2012 R2 Member Server Security Technical Implementation Guide | 2020-10-15 |
Details
| Check Text ( C-27022r471311_chk ) |
|---|
| If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Policies\Microsoft\Windows\TCPIP\v6Transition\ Value Name: Teredo_State Type: REG_SZ Value: Disabled |
| Fix Text (F-27010r471312_fix) |
|---|
| Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> TCPIP Settings -> IPv6 Transition Technologies -> "Set Teredo State" to "Enabled: Disabled State". |