The Cisco website states that an 1841 w/VPN-AIM will support up to 800 IPSec encrypted tunnels. http://www.cisco.com/en/US/products/ps5853/products_data_sheet0900aecd804ff58a.html
When I do my own IPSec tunnel scalability test it fails at 255. I'm fairly new to working with IPSec and VPNs so I'm probably missing something in the config. Any chance one of you could look at the attached config and see if you find anything wrong? Much appreciated.