Create Subnets in my LAN

Andrea_37

Commendable
Aug 29, 2016
7
0
1,510
Hello,
I've recently begun developing my home network, at the moment I've got my ISP Router/Modem with it's own IP Adress connected to a Netgear r8500 router with an external IP assigned by the ISP Router and an Internal IP which is default: Class A IP Range (NET: 10.0.0.0 | Mask: 255.255.255.0 | RouterIP: 10.0.0.1).

Here is the main problem prior to the question: My just-bought Synology NAS 416Play wakes up at random times from Hibernation.

While trying to debug the issue I tried to remove my Android TV from the LAN and it actually improved hibernation times to over 10 hours, so apparently the Shield TV is sending packets waking up the NAS - Actually trying to debug the issue with both Synology and NVdia.

That said I would like to remove every device from the network which could cause issues: Loads of phones, Air Conditioners, Smart TVs and so on - To actually put those devices in a subnet in which they can broadcast all they want without making my power saving solutions useless.


The router is a R8500 Nighthawk from NETGEAR, which has an internal DHCP service running.


Is it possible to divide my home LAN in two by creating subnets to differentiate the traffic going on in broadcast using only one router ?
I figured out that I should use a /9 mask for the net to have 2 distinct networks, one from the IP adress 10.0.0.0 to 10.127.255.255, the other from the 10.128.0.0 to the 10.255.255.255, obviously could do the same with a Class C net aswell, I just calculated it with class A because it's the default for my router.

If it's possible, does anyone know how to make my router assign IPs to both sub-networks ?

I've also seen the VLAN possibility, which seems supported by my router, but I couldn't find a way to make it work: The default VLAN ID 10 / Priority 0 seems to cut out my whole LAN from the outside world (no internet access at all) - May it be because of not having the VLAN option on my ISP Modem ?

Thanks in advance for the inc. responses,
Any help is appreciated
 
Solution
I am not familiar with this router but it is very uncommon for any consumer router to support vlans.

In any case you will likely need a small managed switch that also supports vlans unless you can somehow directly plug all the equipment directly into the router.

The general method you use to set this up is you define each vlan and then assign ports to the vlan. You can also assign wireless ssid to the vlan. You would define a tagged connection to your manged switch to allow the vlans.

Then to make it work as a actual router you would have to assign the gateway lan ip to each of the vlans. There also would need to be a dhcp pool defined for each vlan. Then you have to set routing/firewall rules. Some routers allow all traffic...
I am not familiar with this router but it is very uncommon for any consumer router to support vlans.

In any case you will likely need a small managed switch that also supports vlans unless you can somehow directly plug all the equipment directly into the router.

The general method you use to set this up is you define each vlan and then assign ports to the vlan. You can also assign wireless ssid to the vlan. You would define a tagged connection to your manged switch to allow the vlans.

Then to make it work as a actual router you would have to assign the gateway lan ip to each of the vlans. There also would need to be a dhcp pool defined for each vlan. Then you have to set routing/firewall rules. Some routers allow all traffic to the internet and the other vlan by default and other you must configure everything.

This is mostly read the manual thing. If this router really supports vlans it is a new thing to me. Normally you must load third party firmware to get vlan support on consumer routers.
 
Solution