You can use the hosts.allow thing if you're running sshd from inetd, I think. But I always use sshd as stand-alone server, so don't quote me on that.
What does work is the AllowUsers option in the sshd_config file cause that takes USER@HOST arguments, too, and it accepts wildcards. So
AllowUsers *@192.168.1.10 *@192.168.1.23 demian@*