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Forum Discussion
Using all 4 Ports
please note my CM1200 is not a router, just a modem.
I bought this modem with the intention to use 3 of the 4 LAN ports at once. I have since been told that this is not possible with a modem. This has also been my experience, when my router is plugged in, i cannot hard wire my computer to the modem.
can someone please confirm that I will not be able to plug in 3 devices at once to this modem? i want to have a router, a TV and an apple
tv all plugged in via ethernet at one time.
I bought this modem with the intention to use 3 of the 4 LAN ports at once. I have since been told that this is not possible with a modem. This has also been my experience, when my router is plugged in, i cannot hard wire my computer to the modem.
can someone please confirm that I will not be able to plug in 3 devices at once to this modem? i want to have a router, a TV and an apple
tv all plugged in via ethernet at one time.
6 Replies
For the majority of ISP's only 1 device can be connected to the CM1200 on a consumer grade plan.
Business class lines or people on consumer plans who pay for extra IP address can use more. Most people don't.
Who's your ISP?
- I have Cox internet at my house. We have the gigablast plan.
- can I use a switch with this modem to get more devices connected to it?
> can I use a switch with this modem to get more devices connected to
> it?No. If your ISP gives you one external IP address, which would be
typical, then you need to connect a NAT router, ONLY, to your modem.
Your client devices would be connected to that router.
The problem with the modem is not a shortage of ports, it's a
shortage of brains, which is what the NAT router provides.
> can someone please confirm [...]
You might try an oft-neglected resource:
https://en.wikipedia.org/wiki/RTFM
Visit http://netgear.com/support , put in your model number, and look
for Documentation. Get the User Manual (at least). Read. Look for
"Ethernet port"?https://community.netgear.com/t5/x/x/m-p/1770096
It's conceivable that your ISP could provide you with service which
would allow multiple external addresses, hence multiple devices directly
connected to the CM1200, but exposing your computers/devices directly to
the Internet (that is, without a NAT router in between) would probablybe a big mistake.
