Firewall: Multi-NAT, DMZ Host, Port-Redirection The Vigor2912 Series is an integrated network management solution designed for a small business. The Dual-WAN provides load balancing or link redundancy to ensure a reliable Internet access, and it is also a robust VPN server for up to 16 concurrent tunnels. The firewall and content filtering features can control the incoming and outgoing network traffic, and it also offers bandwidth management functions that optimize the bandwidth allocation and make the best use of the subscribed bandwidth.