Allow login from

For added security you can allow login only from specified IP addresses or subnets.

Specify either full IP addresses (e.g. 192.168.10.21) or subnets (e.g. 192.168.11.0), and separate by spaces or commas (e.g. 192.168.10.21  192.168.11.0) if you want to allow login from multiple locations.