Upgrading From SPF-200 to SunScreen 3.1

You can upgrade the machine that presently operates as your SPF-200 Screen to become a SunScreen 3.1 Screen operating in stealth mode. You can also transfer your SPF-200 configurations to a new machine, and perform the conversion on the new machine. This second method is recommended and will decrease network downtime.

Since SunScreen 3.1 uses ordered packet filtering rules and ordered NAT mappings, you must review your packet filtering rules after the conversion is complete to verify the filtering order is as you want. NAT mappings have changed considerably since the release of SPF-200. See the SunScreen 3.1 Reference manual for detail on NAT mappings.

Instructions for upgrading from SPF-200 are in "Upgrading From SunScreen SPF-200 to SunScreen 3.1 in Stealth Mode."