Your NAT router hopefully has the capability to map ports directly to systems and ports behind it. If that's the case, you'd open a port on the NAT router and point it to your remote SQL Server. You'd then point the main SQL Server to the NAT router IP and the port you opened on it.

K. Brian Kelley, GSEC

http://www.truthsolutions.com/

Author: Start to Finish Guide to SQL Server Performance Monitoring

http://www.netimpress.com/