Where wireless is a passion
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 …
Since these blogposts are preparing for my CWAP, there will be no blogpost about WPA-personal. This blog is how to identify WPA2-personal in the frames, during which I’ll point out the differences between WPA/WPA2 and Personal/Enterprise. There will be a separate blogpost about WPA2-Enterprise in detail as well. Below there is a beacon frame, a …
During my blog “MAC Headers,” I already discussed the Data frames. In this small blog, I want to talk about the 4 most common data frame types. The first is the “normal” Data Frame. This is the data frame without the QoS field in the header. You can filter in wireshark with wlan.fc.type_subtype == 0x0 …