Same here as there is just too much garbage coming in
and it is very
labour intensive, I just block it.
Bob
Well, here there is a lot more garbage coming in on other ports like 22 and 23
but I don't block that as there might be the occasional user who actually
uses it. For the listed completely-blocked ports there appears to be no valid use
from internet to amprnet.
Internal to amprnet we are a lot more transparent, but at the gateway I do block
all traffic to/from addresses without a registration within 44.137.0.0/16.
This cuts the noise as well because currently about 2.8% of the addresses is registered.
(after the big cleanup)
Rob