I encountered a issue when I tried to setup the VPN between the ASA 5505 (version 8.0) and PIX 515E (version 6.3). The VPN can up and running. From the PC in remote site, it can get the IP from DHCP server in central site through the VPN tunnel, and the ping the DNS are all working correctly. But all applications (email, critrix) are not working fine. Attached are the configurations. Do you have any ideas about this issue?