I have problem with a VPN tunnel setup. We have an ASA 5510 and we have setup VPN access for users from outside. It works fine. The problem comes up when configuring Amazon VPN tunnel on it, and where Amazon instructs you to execute this command
crypto map amzn_vpn_map interface outside
once this is executed, VPN tunnel comes up, but our vpn users cannot connect anymore until we map again our crypto map to the iterface outside, which in turns brings the VPN tunnel to Amazon down.
The solution might be simple, but I am no expert.