IWL's Expert Insights on Network Emulation and Protocol Testing
New IoT Cyber Law
On December 4th, the President of the U.S. signed the IoT Cybersecurity Improvement Act of 2020, which directs the National Institute of Standards and Technology (NIST) to create standards and guidelines on the use and management of internet of things devices by federal agencies and to develop guidance on vulnerability disclosure and the resolution of disclosed vulnerabilities…
Use IWL TCP Test Suite to Avoid CERT Security Advisories
ICS-CERT (Industrial Control System – Computer Emergency Response Team) is part of the U.S. Department of Homeland Security. Recently CERT issued two Advisories concerning TCP/IP implementation flaws that have existed for years, perhaps decades and are now being found in embedded systems …
T-Mobile Advised to Stop Claims About 5G Reliability
"T-Mobile can keep telling consumers that its 5G service is faster than 4G and offers more coverage than rivals' 5G, but the National Advertising Division (NAD) of BBB National Programs recommends that it stop claims that its 5G network is more reliable than competitors’ 4G or 5G networks." …
Are You Being Misled by Network Speed Tests? The Reality Might Surprise You!
Many "Speed Test" tools available on the Internet are easily run in a web browser. Should you trust those tools?
Not really. The popular speed testing tools provide a very narrow and limited measure of network "speed". It is quite possible that a network that is rated as "fast" could actually deliver poor results to many applications …
Diagnosing SIP Issues - Hints & Tips
A SonicWall user recently came to us for help; the user felt the problem was within SIP and UDP. Here are some thoughts and ideas we provided to help him with his SIP diagnosis.
SIP is a somewhat troublesome protocol. The basic SIP transactions flow with a well known UDP port number. That makes it relatively easy for a firewall to allow (or disallow) the SIP protocol itself …
A Holistic View of Network Emulation
We read Damien Garros' blog post -- Introduction to Network Emulation and Requirements for Virtual Network Devices with great interest as Mr. Garros takes an unusual view of networking. Our thoughts and comments follow …