
How to make my stack-able Ethernet hub work to connect all devices to the Internet?
I have cable Internet and a cable modem, I also have a Linksys 4 port router and a stackable Ethernet Hub IBM 8237. The thing I would like to be able to do is use the hub to connect to the Internet so I am able to plug all my devices Computers about 6 locations and the 360 and PS3. The stackable hub has 15 ports and then 16MDI-X or 16MDI. Is it possible to basically use the hub for all my connections to the Internet? Please advise.
It is a very little-known fact that some ISP's allow for multiple CPE (customer prem equipment) IP addresses to be leased through a single modem, in which case use of a hub or L2 switch is possible for multiple Internet connections. Basically, the modem acts as an L2 bridge, forwarding all traffic routed to (for example) 3 different public IP addresses, towards whatever hub or switch you have connected to it. In the case of a switch, the modem/CMTS are still recording the IP-to-MAC mappings for each PC, so your switch can forward to the appropriate PC based on the MAC associated with the PC's switchport. So, the only L3 device involved is your service provider's router and/or CMTS, and your network becomes a switched LAN with multiple public IPs, just as if they were privately leased from a home router.
Check with your ISP before relying on this, since not all ISPs offer this, but it is possible to have multiple Internet connections from a modem without your own router. Some ISPs may require you to pay extra for that capability though.
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