http://www.cisco.com/en/US/products/sw/secursw/ps5318/products_data_sheet0900aecd800fd118.html
I'm not sure if it's supported on non XM platforms. But it is on the 2600XMs.
Cisco 1700 Series Modular Access Routers and Cisco 2600XM Series
· Cisco SDM software ships by default on security bundles (k9).
· Cisco SDM software $0 configuration option (ROUTER-SDM or ROUTER-SDM-NOCF) is available on all SKUs.
· Cisco SDM Express is factory installed on router Flash memory, and a Cisco SDM CD is bundled with the router.
