Hi,
You can use the Cisco ISR's integrated service routers with Advance security image on the top of it and it should work for you.
Following routers will be suitable depending on the requirement, Cisco 870, Csico 1800/2800/3800 or Cisco 7200 routers.
http://www.cisco.com/en/US/products/hw/routers/products_promotion0900aecd8017150a.html
HTH,Please rate if it does.
-amit singh