ipsec tunnels on 1841

[roneng]

with advance security ios, how many tunnels can i configure?

[i00050145]

Support of up to 800 VPN tunnels with the AIM Module. Check this link http://www.cisco.com/en/US/products/ps5875/index.html

[mike.keller]

Another good resource are the portable product sheets. They list performance for most relevant platforms (including ISRs and ASAs)

http://www.cisco.com/web/partners/tools/quickreference/index.html

Here is the one for VPN:

http://www.cisco.com/web/partners/downloads/765/tools/quickreference/vpn_performance_eng.pdf

If you read this pdf, about halfway down, it lists the ISRs (including the 1800). You will see that an 1841 will support 100 IPSEC tunnels or 800 with the AIM-VPN.