Filter-hook driver: dispatcher not called?

Question

Drivers

Good day
I'm trying to write a legacy filter-hook driver that would block traffic on a specific port.
I specify the dispatcher

DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = DrvDispatch;

I launch the driver on the Ipfilter target.
net start ipfilterdriver
After that, I launch my filter in debugging through VisualDDK. But when sending packets, the dispatcher is not called.
What am I doing wrong?

Answer 1

I forgot to register the filter-hook callback function immediately in the DriverEntry.
Registering and Clearing a Filter Hook