Cisco Systems recently announced a patch for a vulnerability in Simple Network Management Protocol (SNMP) functions of some Cisco routers. This vulnerability could allow an authenticated, remote attacker to cause high CPU usage on an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to an incorrect initialized variable …

The Building Automation and Control network (BACnet) protocol defines a network communication standard for building control systems to communicate. Before deploying a new BACnet-enabled control unit in a BACnet/IP network, it would be helpful to verify that the new control unit can handle the full range of adverse network conditions that are likely to occur …

“SDN Complexity and Reality” by Russ White and Shawn Zandi, was published on page 31 of The Internet Protocol Journal, November 2016 (Volume 19, Number 3). In the article, White and Zandi, examine the original three crucial elements to the SDN story. I would like to propose an additional challenge that was not addressed in the article: network partitioning and subsequent re-joining …

IWL provides the SilverCreek SNMP Test Suite, Libraries and APIs for engineers to find and fix bugs in their SNMP agent implementations. Often developers and quality assurance engineers will need to test the SNMP management application to be used with a new SNMP agent. Verifying SNMP-based network management applications requires an SNMP agent simulator …