The system must be configured to disable the Internet Router Discovery Protocol (IRDP).

From Windows 8 Security Technical Implementation Guide

Associated with IA controls: ECSC-1

SV-48544r1_rule The system must be configured to disable the Internet Router Discovery Protocol (IRDP).

Vulnerability discussion

The Internet Router Discovery Protocol (IRDP) is used to detect and configure default gateway addresses on the computer. If a router is impersonated on a network, traffic could be routed through the compromised system.

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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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