XINCOM's XC-DPG603 is a Twin WAN Gateway with IPSec VPN support for remote clients and built-in Authoritative DNS provides inbound load balancing features.

The XC-DPG603's primary features are full VPN Aggregation with Automatic Failover and the Authoritative DNS function with Inbound Load Balancing. The VPN capability will allow for two aggregated VPN tunnles to effectively work as single tunnel combining VPN traffic over two broadband connections. Full redundancy is assured when establishing a VPN tunnel on each WAN port. The authoritative DNS feature load balances inbound traffic requests to the respective IP address on a network infrastructure that hosts content on multiple servers. High throughput of inbound and outbound requests are managed by dual WAN ports that utilize the combined bandwidth of two separate concurrent broadband connections including DSL, Cable, and/or T1.
Using two separate ISPs provides redundant connectivity to the Internet. In the event that one ISP goes down, the XC-DPG603 automatically fails over to the other ISP service. Redundancy to the Internet provides a truly uninterrupted connection for a business's customers while maintaining uptime and productivity for its employees.
The XC-DPG603 also features NAT, a Stateful Packet Inspection Firewall, DHCP server, Access Filters, and VPN pass-through to secure a business’s network services. The Quality of Service (QoS) feature schedules and directs a network’s traffic to take advantage of available bandwidth. The XC-DPG603 UPnP support can dynamically open and close ports required by certain software automatically. Increased bandwidth and redundant connectivity to the Internet provides cost-effective bandwidth solutions to expensive leased telecommunication lines for your network infrastructure.
How it works: Aggregating two concurrent VPN tunnels

Aggregating traffic requests over two concurrent VPN tunnels provides increase bandwidth for a Virtual Private Network.