2 Replies Latest reply: Apr 16, 2019 8:53 PM by Martin RSS

    innerworkings of windows network connectivity indication

    Gator

      I was setting up a lab in which I connect my Cisco router and switch to my home router in order to be able to provide internet connectivity for my PCs that connect to the Cisco switch. I noticed during the initial connection process that the network icon in the bottom right of the windows system tray on my laptop displayed a yellow exclamation point with the 'no internet access' message. Once everything was set up correctly, this exclamation point went away and the message changed to 'internet access'.

       

      I've seen this countless times before but never really thought about what was going on behind the scenes. How exactly does my laptop determine that it has internet connectivity? What kind of traffic/data does it send or receive from my home router that lets it know it's now connected to the internet? Does it do some pinging behind the scenes automatically that I'm not aware of?

       

      Thanks