I'm new to cisco products. My company just procure 2 cisco ASA 5505 for site to site VPN between our head office and branch office. I know the subnet mask and ip range for both networks. My problem is how to configure the ASA for site to site connection. Another issue here is that in my head office, there is a sonic firewall that NAT all our traffic across the internet and as it stands i cannot remove it but i have to place my ASA behind the sonicwall. How can i achieve this?