I currently manage an office building that has 42 internal networks and I have a single linux firewall/gateway to the internet. I am looking to replace it possibly with an asa 5505 firewall, but I thought I should check with those more familiar with the product if this is a good fit for my network. I don't have a need for vpn, but my linux box is capable of that. The biggest need in my firewall is the ablility for 1-1 Nat translations by port and by IP address. I also need the ability of the device to handle multiple public ip addresses. Does anyone have any thoughts? Will I need a device with a lot of licenses, or is that just for vpn? Thanks in advance for your help.