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18.4.5 Ensure 'MSS: (KeepAliveTime) How often keep-alive packets are sent in milliseconds' is set to 'Enabled: 300,000 or 5 minutes'

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Information

This value controls how often TCP attempts to verify that an idle connection is still intact by sending a keep-alive packet. If the remote computer is still reachable, it acknowledges the keep-alive packet.

Solution

Make sure 'MSS: (KeepAliveTime) is enabled and set to 300,000 or 5 minutes.'

See Also

https://workbench.cisecurity.org/files/1941

Item Details

Category: SYSTEM AND COMMUNICATIONS PROTECTION

References: 800-53|SC-7, CSCv6|9

Plugin: Windows

Control ID: be4b08a8f2ba9d2a1f948e3cef2e64913243366fde7e934a2bb5c8709a139471