I have a 5505 ASA and a Cisco 837 router and I am trying to establish a site to site VPN, but I am able to bring up the tunnel. I have attached the two configs.
You cannot ping from the ASA itself to bring up the tunnel. You have to ping from a device behind the ASA. Or you can ping from the router using an extended ping like your previous testing.
Please post debug outputs from both the router an ASA when you ping from the router.
*Pls rate if it helps*