Where wireless is a passion
Security nowadays is a hot topic. Ransomware is in the news, and even commercials on the Dutch radios are talking about protecting your company against ransomware. Your network is as strong as the weakest link. If you use WEP as your wireless protection, you might as well remove all your security in your company. You …
It is not something new, wireless is using a shared medium. Having a shared medium is a problem, as you share it with others. Every new 802.11 standard comes with a faster network. I saw the news release of 802.11ac with up to 6.93 Gbit/s. When you walk into the retail stores you see the …
Hereby my plan of action for preparing for Certified Wireless Analysis Professional. You need to understand the exam objects and not remembering questions. What the hard part is about analyzing wireless problems, you cannot learn it from books (in my opinion). My recommendation is to have real life experiences before taking this test. Use WireShark …
Probably you would not believe it, but there are common wireless issues/limitations as well. Insufficient Capacity Think about networks with mixed PHYs. When there is an HT only network and an ERP client is going to associate with this network. The access point will implement a protection mechanism that have influence on the throughput. Another …
If there is a Wi-Fi issue, this doesn’t mean it is a wireless cause. There are still some wired services that can have affect on the wireless network. In this blog, I want to write down how to troubleshoot the wired network for wireless purposes. We can use protocol analyzers like we use for wireless …
Like protocol analysis, you can do spectrum analysis with multiple devices. You can do mobile (laptop with an adapter) or infrastructure (with an access point). With a spectrum analysis, you are only looking to the RF, so it doesn’t matter if the network is 802.11n or 802.11ac. In infrastructure spectrum analysis, there are two options. …