iDefend 4306


6-port, 1 Gigabit Ethernet PCI-Express Security NIC Security Sniffer Acceleration IPv4 and IPv6 copper/fiber optic



LeWiz's iDefend family of network interface cards (NIC) designed specifically for network security applications. The cards are targeted for a wide range of security appliances for LAN/WAN and data center environments from 1 to 10Gbps networks.

LeWiz's iDefend4306TM NIC enables standard PC systems to perform network security, packet sniffing, analysis, deep-packet inspection, and firewalling functions over TCP/IP networks at full 6Gbps rates with minimal CPU usage. The iDefend4306TM NIC features 6, 1Gbps ports on a short form x8 PCI-express card. Each port is capable of capturing network packets at full speed, performs network filtering against a set of programmable network policies, tracks the network packets arrival times and timestamp each packet with highly accurate timestamp. To optimize total system throughput and efficiency, the iDefend4306TM card can aggregate the Ethernet ports, forward and load balance the captured traffic to the system CPUs for processing. As programmable option for security cluster applications, the card can also redirect the captured traffic to designated remote network systems for further processing with load balancing control making efficient use of every systems in the enterprise-level security processing cluster The card tracks the network statistics of each port to further assist software in network analysis and developers in debugging their system development.

LeWiz has designed this card for high performance, high throughput, fully programmable and highly flexible. The iDefend products' hardware and software are fully available for customer's customization. For each port, LeWiz has packed a dedicated filter acceleration engine, a dedicated 1Gbps MAC with large, non-sharing FIFOs, and multiple DMA channels allowing simultaneous fetching of data and commands independently. Each port also has dedicated large data paths in each direction enabling the port to transfer data while processing network packets. Each port has a cluster of processing engines forming multiple processing pipelines allowing further parallel and pipelined processing of security functions - maximizing throughput. In addition, the card also performs TCP/UDP/IP offload functions such as checksum offload, and auto-segmentation. It supports standard Ethernet frame (<= 1500bytes) or jumbo sizes.

The iDefend4306TM card's single-chip, high level of integration allows it to maintain low cost, low power consumption, easily fitting into the budget and requirements of a short PCI-express card. Yet, its hardware and software are fully programmable and maintains the ease of use of a normal NIC that many engineers are familiar with. There are many built-in programmable functions allowing the card to be tuned or upgrade (even out in the field) to be compatible with any peculiar network equipment the user may be encountered out in the field. This lowers the risk for your deployment and ensures long usability for your equipment investment.

The iDefend4306TM card comes with loadable device drivers for Linux and Windows operating systems. Developed for plug-n-play, no need for the users to recompile the driver or patching the kernel as typically required by other offload cards.

For OEMs and developers, LeWiz created specialized APIs and other features for its iDefend4306TM NIC to enable the OEMs developing differentiated products & unique features. The iDefend4306TM NIC is a member of LeWiz's family of advanced NIC products from 1Gbps to 10Gbps for the PCI-express bus. Customers using the iDefend4306TM NIC can maintain compatibility with LeWiz's other products. See LeWiz's Talon, iDefend and iStream NIC PCI-express products at: