Use C7000 (as modem only) with R6900P

[gagandeep]

Hi. I have too many devices (smart plugs, laptops, iPads, Wireless cameras) and so just bought R6900P router with MU-MIMO from an aquaintance. I believe this will handle more devices easily and effectively than the non MU-MIMO C7000. I now want to convert my C7000-100NAS to "modem" only and attach R6900P to it, will it work? I did some research and hence, here is what I plan to do:

1. In C7000 cable modem router control panel, I will goto advanced > router mode > and change "router mode" to "no". This should turn wireless off.

2. In advanced > Setup > LAN, I will keep "LAN tcp/ip setting" as is which is 192.168.0.1 and will then turn off DHCP.

3. The C7000 only has Using a LAN ports (no WAN or Internet port), I will connect #1 of LAN port of C7000 to the yellow colored "internet" port on R6900P. For R6900P I will also change login password, set my SSID with wifi password and reboot.

Questions: Will the above steps be fine? Contrary to #2 above, if I keep DHCP server active or "on" in C7000 (note DHCP server has be set at "on" in the R6900P), will it cause issues especially double NAT conflicts? Can I leave the R6900P LAN tcp/ip as 192.168.1.1 (or should set at 192.168.0.2) - note C7000 has 192.168.0.1?

Hope I am doing the steps right? Any advice?

(PS - one more reason for using R6900P is that it has antennas that I can turn to desired position. I have a wireless camera in one dingy corner of garage that keeps losing signal. Attaching a large 9dB gain antenna helped a lot but just a few moments in a day the camera loses signal! I want to first try the above setup, only if it does not work, I will use R6900P in another location via LAN as a WAP. I am avoiding too many Wifi signal emitters in the house)

[antinode]

> [...] This should turn wireless off.

   It should disable the whole router section of the modem+router, not
only the wireless-network radio(s).  Which makes your step 2 pointless.

> Questions: Will the above steps be fine? [...]

   Skip step 2, and it sounds generally plausible.

> [...] if I keep DHCP server active or "on" in C7000 [...]

   If you disable the C7000 router section, then you can't keep its DHCP
server (part of its router section) active.  Nor would there be any
reason to.

> [...] Can I leave the R6900P LAN tcp/ip as 192.168.1.1 (or should set
> at 192.168.0.2) - note C7000 has 192.168.0.1?

   I'd leave it at its default address, unless you have some good reason
to use something different.  Again, if you disable the C7000 router
section, then it stops using the "192.168.0.*" subnet for anything.  (If
you want to talk to its management web site, then you'd need to use its
DOCSIS-modem address, "192.168.100.1".)

> Hope I am doing the steps right? Any advice?

   Visit http://netgear.com/support , put in your modem+router model
number, and look for Documentation.  Get the User Manual.  Read.  Repeat
for your router model number.

   An alternative scheme would be to leave the C7000 as a modem+router,
and configure the R6900P as a wireless access point.  Look for "Use the
Router as a WiFi Access Point" in the R6900P User Manual.