How to Use 'nfpktfltr' Command-Line Options



This Knowledgebase article provides information about how to use 'nfpktfltr' command-line options.


More Information

The 'nfpktfltr' command allows for multiple command-line options. See the information below about how to use these options.


From C:\Neverfail\R2\bin>nfpktfltr.exe, execute the command with the following options:

To install/uninstall the Neverfail Packet Filter for Neverfail Heartbeat prior to V5.0.1:

install - install nfpktfltr from directory

uninstall - uninstall nfpktfltr from all adapters

To install/uninstall for Neverfail Heartbeat V5.0.1 and later

install %installdir%\neverfail\r2\drivers\nfpktfltr\5.0.802 - install nfpktfltr

uninstall %installdir%\neverfail\r2\drivers\nfpktfltr\5.0.802 - uninstall nfpktfltr from all adapters

Other options include:

Option Function
enable enable the network for active server
disable disable the network for passive server
arp send gratuitous ARPs on all public IP addresses
setstate [block | filter | passthru] set the filter state
getstate get the filter state
setloadstate [block | filter | passthru] set the filter load state
getloadstate get the filter load state
setfilter [ [yyy.yyy.yyy.yyy]] set the IP addresses to filter
getfilter get the filtered IP addresses
setnetbiosfilter [0 | 1] enable or disable NetBIOS filtering
getnetbiosfilter see the results of the above
setloglevel [0 | 1 | 2] set driver event log level to disable, normal, debug
getloglevel see the results of the above
Note: The commands above are an example and the folder version number (5.0.802) may differ from the actual location you are working from. The location %installdir%\neverfail\r2\drivers\nfpktfltr\%neverfailversion% must exist before the command will execute. If this folder location does not exist and you are unsure about how to continue please contact your Neverfail Support representative.


Applies To

As Indicated Above


Related Information

Knowledgebase article #353 - How to Manually Install and Uninstall the Neverfail Packet Filter Driver



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