IPv6 TCP data retransmissions will be configured to prevent resources from becoming exhausted.

From Windows Server 2008 R2 Domain Controller Security Technical Implementation Guide

Associated with IA controls: ECSC-1

SV-32450r1_rule IPv6 TCP data retransmissions will be configured to prevent resources from becoming exhausted.

Vulnerability discussion

This check verifies Windows is configured to control the maximum number of times that IPv6 TCP retransmits unacknowledged data segments before aborting the attempt to prevent resources from becoming exhausted.

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Fix text

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “MSS: (TcpMaxDataRetransmissions IPv6) How many times unacknowledged data is retransmitted (3 recommended, 5 is the default)” to “3” or less.

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