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Conventionally, when we register for a broadband Internet connection, the ISP provides us with a Modem/router. The modem will have a port for phone-line connection, and (say)4 Ethernet ports. I was just wondering about the internal connections within the router. Which of the following is the correct internal arrangement?
- Modem to Router(implicit) to Switch(all 4 slots)
- Modem to Router(all 4 slots)
- Modem to Switch(all 4 slots)
Now, consider another scenario where we get a modem with only one Ethernet port for output. Now if I need to connect 20 PCs to it in order to connect to the Internet, will buying a (say)30-Slot Switch suffice (or) should I buy a router and then connect it to a switch?
P.S. I asked the two questions together because when I asked the first question to a senior, he answered quickly. Then when I asked the second question immediately, he stumbled and told that he was not sure.
P.P.S. My understanding is that the modem which comes with more than one Ethernet output slot, would likely have a router setup internally. And the modem which comes with only one Ethernet slot would not have an internal router, and so it is devoid of any routing capabilities. Am I correct?
Not sure why my answer was downvoted and I'd like to know if anyone can tell me !!! – davidgo – 2013-08-02T23:30:34.787