Ubuntu 20.04 Unable to find NET_DM family, dropwatch can't work, kernel already configured with CONFIG_NET_DROP_MONITOR=y

[jmck111]

I have installed dropwatch using snap on Ubuntu 20.04. Running Kernel is 5.4.0-200-generic

When I run: dropwatch -l kas

I get:
Unable to find NET_DM family,
dropwatch can't work

I have checked the kernel var CONFIG_NET_DROP_MONITOR and its already set to y.
Any ideas?
Thanks.

[nhorman]

I'm guessing its some kernel misconfiguration. I just tried on 22.04 with kernel 5.15.0-122 and it works fine. Perhaps you're looking at the config for a newer kernel but running a version that doesn't have it enabled. Suggest opening an issue with ubuntu.

[jmck111]

Thanks for the quick reply. Hmm seems to be the correct Kernel I'm checking. I'll do some more digging.