I've used many SW devices to setup remote locations with Site2Site VPNs and had everything working well. I replaced one of the SW's with an ASA5505.
All of the sample configs I've seen use Main Mode (both ends have static IPs). In my case the PRO2040 is static and the ASA is DHCP.
I almost have the VPN setup but I am hitting one problem. Phase 1 completes but Phase 2 complains of a network mismatch. The log on the SW says this "IKE Responder: Peer's local network does not match VPN policy's Destination Network" ... "Proposed network: 22.214.171.124". The IP listed is the DHCP assigned IP of the outside interface on the ASA.
I've checked the settings in the cryptomap 50 times and I'm sure it's correct. The remote network is the inside network of the PRO2040. The local network is the inside network on the ASA.
Does anyone have any suggestions? If I get this working I'll post a complete HOW-TO.