Do Volo connections have a firewall?

Yes, at this time all connections provided by Volo have a firewall on them (unless the customer explicitly requests it's removal). This firewall and gateway router not only protects your computer(s) from network based attacks, but also allows you to easily share your internet connection between multiple computers. In fact a basic Volo connection will configure up to 200 computers automatically, all you have to do is connect them together with switches or hubs.