Internet Access Firewall Protects Corporate Assets Featuring the NetVanta 3000 Series

The NetVanta 3000 Series of access routers from ADTRAN offers the most cost-effective way to access the Internet. These versatile platforms are modular in design and are a full-featured, low-cost alternative to other brand name routers. They include a variety of interchangeable Network Interface Modules (NIMs) and Dial Backup Interface Modules (DIMs) allowing for network expansion or future growth.

As the diagram illustrates, various line rates are used to connect the branch offices to the corporate headquarters using a public Frame Relay network. At the corporate headquarters, Frame Relay and Internet access are terminated with a single device, the NetVanta 3305, supporting dual T1/FT1 NIMs. This NetVanta 3305 is configured using standard Internet protocols like PPP and protects the corporate infrastructure from unsolicited cyber attacks or Denial of Service (DoS) attempts using a stateful inspection firewall. With the two auto-sensing 10/100BaseT Ethernet interfaces, two LAN segments are created for true LAN segmentation or as a DMZ application for added security.