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IPv6 TCP data retransmissions must be configured to prevent resources from becoming exhausted.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-21956 | 3.156 | SV-32450r2_rule | ECSC-1 | Low |
| Description |
|---|
| Configuring Windows to limit the number of times that IPv6 TCP retransmits unacknowledged data segments before aborting the attempt helps prevent resources from becoming exhausted. |
| STIG | Date |
|---|---|
| Windows Server 2008 R2 Member Server Security Technical Implementation Guide | 2016-01-22 |
Details
| Check Text ( None ) |
|---|
| None |
| Fix Text (F-66937r1_fix) |
|---|
| 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 default)" to "3" or less. |