disable ICMP timestamp responses

Question

disable ICMP timestamp responses without Windows Firewall

Answer 1

Hello

Thank you for posting in Q&A forum.

In Windows, if you want to disable ICMP Timestamp Reply without relying on Windows Firewall, you can do so by modifying the registry.

Please note that you must back up the registry before modifying it to prevent improper operation from causing system problems.

Here are the steps to disable ICMP Timestamp Reply:

1. Press Win + R to open the Run dialog box, enter regedit, and then press Enter. This will open the Registry Editor.
2. In the Registry Editor, expand the following paths in sequence:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

3. In the right window of the "Parameters" item, check if there is a DWORD value named EnableICMPTimestampRep. If it does not exist, right-click in the blank space and select "New" > "DWORD (32-bit) Value".
4. Name the newly created value EnableICMPTimestampRep. Double-click EnableICMPTimestampRep and set its value data to 0 in the pop-up window. This will disable ICMP Timestamp Reply. Confirm that the base is "Decimal" and click "OK".
5. After the modification is completed, you need to restart your computer for the changes to take effect.

I hope the information above is helpful.

Best Regards,

Yanhong Liu

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