Where wireless is a passion
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. …
The second blog about RF Math is about calculation dBm to mW and mW to dBm. The rules from the 10s and the 3s still apply, but you need to change the mindset. A new basic rule is that 0 dBm is equal to 1 mW. With the rules of 10 and rules of 3 …
If you ask me what one of my favorite subjects was in high school, I’d definitely pick math. When I did the CWNA training I loved the math part and now during my preparation of CWAP, I’m getting a review of math. I believe not everybody is good in (or likes) math, so writing this …
There are three ways to do protocol analyzing. The first one is the mobile category. Mobile is laptop based, or nowadays you can use tablets as well. The ‘problem’ is, knowing if the hardware and software is ready for protocol analysis. Does the operating system support the adapters that you are using? Apple tablets don’t …
In a previous blog, I mentioned the differences between personal and enterprise security. Personal uses a Pre-Shared Key and enterprise uses the 802.1X framework for authentication. It doesn’t matter that we are using Open System Authentication, since WPA2-personal and WPA2-enterprise is secure enough. After the Open System Authentication, you will see the EAP frames. In …