I am working with a Symantec 100 VPN firewall and I am able to connect to it using a web browser. Someone created a password for the firewall, but they no longer are working here. The password that they left does not appear to be valid any longer, because when I enter it, the login window simply pops back up. The username is "admin". The only thing that I know to do is to perform a manual reset of the device (by flipping some switches on the back of the firewall). The manual for the firewall says that this will reset the password, the static IP address, and the subnet mask of the firewall.
I am afraid, however, that any other configurations that may be in the firewall (open ports, etc.) will be reset as well. The manual does not say anything about whether this will happen or not. Does anyone know if the other settings will be reset?

Yeah if you reset it, it will reset everything back to a factory default.

Thanks for your quick reply! I will probably just have to reset the firewall and try and reconfigure it as best as I can. I know that they use NAT since they have a private IP scope and they communicate with some branch locations over a router. If I am lucky, though, their Cisco routers are handling NAT and not the firewall.