How to block IPs on IIS FTP

[CVMichael]

Someone is trying to hack into my FTP, he/she is trying for a few hours now with diferent usernames.

My daily log file is 8 MBytes of login tries from the same IP.

How can I block that IP or the whole network ?

PS
I found this website to locate by IP: http://www.ip2location.com/free.asp

And I got this:
IP Address Country (Short) Country (Full) Flag Region City ISP Map
124.0.210.117 KR KOREA, REPUBLIC OF - - SK NETWORKS CO

I won't mind if I block the whole network, ie, block "124.*"

But how ?

[ally01]

check out this site see if it helps u out

http://www.iis-resources.com

[TokersBall_CDXX]

Someone is trying to hack into my FTP, he/she is trying for a few hours now with diferent usernames.

My daily log file is 8 MBytes of login tries from the same IP.

How can I block that IP or the whole network ?

PS
I found this website to locate by IP: http://www.ip2location.com/free.asp

And I got this:
IP Address Country (Short) Country (Full) Flag Region City ISP Map
124.0.210.117 KR KOREA, REPUBLIC OF - - SK NETWORKS CO

I won't mind if I block the whole network, ie, block "124.*"

But how ?

You can set up an FTP site with different levels of access for different users. To limit access to only certain computers:
1. In the Internet Information Services snap-in, right-click your server object, and then click Properties.
2. Click the Directory Security tab, and then click Edit in the IP address and domain name restrictions section.