After taking a look at my router's configuration the other day, I noticed for the first time that the router's page had a section called modem in it where I can configure DHCP, DynDNS, etc. I have some trouble figuring out identifying how my network works at home. I can't seem to find any box which looks like a modem. So I have a few questions:
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If I can access the modem's configuration on my router's page, does that mean that the modem is inside the router? Is that even possible?
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I have posted pictures below of two devices I have at home whose function I know little about. The first one (TPLink device) has a blue RJ45 cable coming out of it and plugs directly into my router. What's this device called and what does it do? The second pictures is a device which plugs into an outlet and from which comes out a RJ11-connected cable that plugs into the DSL port of my router. What's the name of the device with the 6 holes into it? Can we call that a telephone outlet? From what I could understand, here we have cable for TV and DSL for Internet access. I just want to understand what type of Internet connection I'm dealing with here and how all of that is connected together.