I have a Catalyst 3750 with the Software (C3750-I5-M), Version 12.2(18)SE and can't find any command to configure NAT. The only commands for NAT are the show ip nat [stat | tran] commands. We urgently need the NAT feature. And also the Software Advisory Tool on CCO suggests this software version for NAT. How can I enable and configure NAT on the Catalyst 3750G-24TS?