The system is configured to detect and configure default gateway addresses.

From Windows 7 Security Technical Implementation Guide

Part of Disable Router Discovery

Associated with: CCI-002385

SV-25071r1_rule The system is configured to detect and configure default gateway addresses.

Vulnerability discussion

Enables or disables the Internet Router Discovery Protocol (IRDP) used to detect and configure default gateway addresses on the computer.

Check content

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “MSS: (PerformRouterDiscovery) Allow IRDP to detect and configure Default Gateway addresses (could lead to DoS)” is not set to “Disabled”, then this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Subkey: \System\CurrentControlSet\Services\Tcpip\Parameters\ Value Name: PerformRouterDiscovery Value Type: REG_DWORD Value: 0

Fix text

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “MSS: (PerformRouterDiscovery) Allow IRDP to detect and configure Default Gateway addresses (could lead to DoS)” to “Disabled”.

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