I have been lurking on this list of a long time and have learned much over the years. Now I'm hoping someone can point me to a good resource to understaning vlans. For some reason networking configurations beyond the most basic setups have never been something I really have gotten my head around. Databases are more my thing. I have a Linksys E4200 router that I have flashed with the latest dd-wrt v24-40559_NEWD-2_K2.6_mini. My objective is to setup multiple vlans with multiple SSID's associated with the vlans to segragate my business, home, and iot devices from one another. After trying this tutorial https://www.ciscopress.com/articles/article.asp?p=1730493 and reseting the router many times I decided I need to understand how vlans work and how to set them up properly with this setup. I would like to start by understanding the default setup and what role the default bridge br0 plays in that setup and then move on from there. Thanks in advance, Mike