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Forum Discussion
CM1200 Router Ports
So I have been trying to do some reseach and I have read the other posts about the ethernet ports on the CM1200, but it isn't explicitly clear. What I am trying to do is to connect a wireless r...
Just because it has 4 ports on the back of the CM1200 doesn't mean it has a router or you can connect anything to these ports. Further informnation about this modem says that these ports are for ISP WAN IP addressing on ports 2-4. These are WAN side ports only. So you have a ISP and a business need for having 4 different WAN IP addresses from your ISP, this modem fits that need.
Please don't assume that if a modem has 4 ports that there would be a router. You can assume that for the C series modems, yes this is the case for those series modems as they do have built in router. For the CM series, these modems do not have a built in router. Yes, you may see more than one WAN port on these modems, CM1100 and CM1200 are the only models that have these additional WAN ports for only WAN side ISP assigned IP addresses from them.
adamfong11 wrote:So I have been trying to do some reseach and I have read the other posts about the ethernet ports on the CM1200, but it isn't explicitly clear.
What I am trying to do is to connect a wireless router (google home) and a NAS to the Modem on the same LAN. In some posts people are saying that only one of the four ethernet ports can be used at any given time unless you have separate IP addresses from your ISP (for link aggregation purposes). I honestly don't need that fancy stuff, I just need 2 ethernet ports to put 2 hardwired devices on the same network. On another website it says the following:
"One thing that you have to bear in mind is that NETGEAR modems with link aggregation will only allow you to use half the total number of available ports. For example, if it comes with 4 ports, only two can be used with your computer. The remaining two are only available for link aggregation."
https://fadingred.org/best-docsis-3-1-modems/
So if I assume that this website is correct, the CM1200 would allow me to solve my problem and connect 2 devices on the same network. I can live without 4 ports, but I need at least 2. Am I correct?
Thank you.