Access list for VPN tunnel

[michiganheart]

I have a dynamic tunnel between a 831 and a Pix 515e. What ports do I need to open on the 831 to allow the tunnel to stay up, but close un-needed ports to the outside?

[didyap]

Here is a reference that you can use for IPSec between PIX and router.

http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_configuration_example09186a0080094498.shtml