I have everything I need to start blocking foreign country IP addresses except one thing and that's the enormous list of IP addresses. There are some great websites out there to find the addresses I need but it's going to take me months to input everything. Does anyone have any hints on how to do this? Maybe some kind of CSV import?
Never mind. I asked SecureWorks to do Geo-Blocking and that did the trick. For anything else that gets through I'm automatically shunning connections to our unused IP addresses and to/from ports on public IP's that are in use. So far it's working great. I am also able to automatically shun Email rejects from our Sophos Email appliance.