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Cascade Router

Net001
Tutor

Cascade Router

Hi,

I want to separate networks in my house and currently have a linksys router as the primary and is the one connected to the modem and would like to have this R8000P as the secundary. I am guesing the method to use to separate networks would be a LAN-WAN topology, can anyone verify this and what will be the settings that I need to change on the secundary router?.

 

 

Thanks

Model: R8000P|Nighthawk X6S—AC4000 Tri-Band WiFi Router
Message 1 of 9

Accepted Solutions
Net001
Tutor

Re: Cascade Router

Hi,

Long story short:

configuration used: LAN-WAN

With Netgear (secondary router) default settings:

1.-Changed SSID and password.

2.-Connected Netgear's Internet yellow port to Linksys's (Primary router) LAN port.

This way there was a conflict because both routers had the same LAN IP segment but the 

Netgear Router changed its LAN IP to 10.0.0.1 automatically (but had to powercycle the unit) and 10.0.0.2 as the starting IP address.

3.- Powercycle Netgear router

The Linksys (Primary) asigned a 192.168.1.x to the Netgear internet IP address.

The Linksys as I mentioned before is the one connected to the modem (outside world).

The goal was to keep two separate LAN's with different SSID's and passwords and with the steps followed above I was able to achieve the goal.

 

I also tried changing the Netgear's (Secundary) LAN IP segment to 192.168.2.1 and also works. Note that this change in the IP address was done before making the physical connection LAN-WAN.

 

I hope this help.

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Message 9 of 9

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JustinThyme
Guide

Re: Cascade Router

When you say seperate are you talking completely seperate as one had nothing to do with the other? 

Also how are you connecting to the internet?

Message 2 of 9
antinode
Guru

Re: Cascade Router

> I want to separate networks in my house [...]

   Why?  Is there some actual problem which you are trying to solve?  It
might help if you started at the beginning, and explained what you're
actually trying to do, rather than asking how to implement some
particular "solution" to whatever problem you think that you have.

> [...] I am guesing the method to use to separate networks would be a
> LAN-WAN topology, [...]

   What, exactly, does "a LAN-WAN topology" mean to you?  (Inventing
your own technical terms can produce more confusion than clarity.)

> [...] can anyone verify this and what will be the settings that I need
to change on the secundary router?.

   That all depends on what you want to do, and how.  Bear in mind that
cascading routers can cause problems ("double NAT") for devices
connected to the inner router.  Configuring the second router as a
wireless access point can provide one unified LAN with no such problems.

Message 3 of 9

Re: Cascade Router


@JustinThyme wrote:

When you say seperate are you talking completely seperate as one had nothing to do with the other? 

Also how are you connecting to the internet?


Good questions.

 

The Internet one is important. If you want both networks to connect to the same Internet service, and to use the same modem, you'll have to be careful to avoid the two networks fighting each other to control things.

 

 

Message 4 of 9
Net001
Tutor

Re: Cascade Router

I want to prevent the devices conected to the netgear R8000P (secundary) commuicate with the devices connected to the Linksys (Primary). A couple of examples are: I dont want to cast to the other tenant's chromecast or I dont want the other tenant send prints to my wireless printer all these by mistake.

We need both routers have internet access but there is only one ethernet port on the modem plus the ISP provider only provides one IP.

The primary router (Linksys) connects to the modem.

 

Here is some information I found in Linksys's website:

https://www.linksys.com/ca/support-article?articleNum=132275

 

Thanks

Message 5 of 9

Re: Cascade Router

You could follow those instructions. They seem pretty straightforward, but who knows if the R8000P will play ball?

 

If your aim is to keep the wifi networks separate, then using unique SSIDs and passwords would be an option.

 

In that case, you could use the R8000P as an wifi access point. Give that SSIDs and passwords that only you know and the neighbour won't be able to get at your devices.

 

 

 

 

Message 6 of 9
antinode
Guru

Re: Cascade Router

> I want to prevent the devices conected [...]

   Ok.  Subject to the usual ("double NAT") problems for incoming
connections to devices on the inner network, you should be able to
connect the WAN/Internet port of the second (Netgear) router to a LAN
port on the first (Linksys) router, with no special configuration
required.  The second (Netgear) router should choose a LAN subnet which
is different from its WAN subnet (the Linksys LAN subnet), so accidental
connections between devices on the two subnets should not be a problem.

   Note that this isolation is partly voluntary.  _Intentional_
connections from devices on the secondary router LAN to devices on the
primary router LAN would still be possible.  To make possible
connections from devices on the primary router LAN to devices on the
secondary router LAN, you'd need to add a (probably static) route on the
primary router.

Message 7 of 9
antinode
Guru

Re: Cascade Router

> If your aim is to keep the wifi networks separate, then using unique
> SSIDs and passwords would be an option.

   If you want only your own devices to connect to your own router, then
different SSIDs on the two routers is a _requirement_, not an option.

> In that case, you could use the R8000P as an wifi access point. Give
> that SSIDs and passwords that only you know and the neighbour won't be
> able to get at your devices.

   Not really.  If one router is configured as a wireless access point
(WAP, what that Linksys doc calls a LAN-LAN configuration), then there
is only one LAN, and all devices share it.  The only "isolation" in such
a configuration is a restriction on which devices can connect to which
wireless access point (the one in the main router, or the one in the
WAP-only WAP).  Once a device has joined the (single) LAN, using either
wireless access point, it will be on the same (single) LAN as every
other device, no matter whose radio it's using.  This is exactly what
you don't want.

Message 8 of 9
Net001
Tutor

Re: Cascade Router

Hi,

Long story short:

configuration used: LAN-WAN

With Netgear (secondary router) default settings:

1.-Changed SSID and password.

2.-Connected Netgear's Internet yellow port to Linksys's (Primary router) LAN port.

This way there was a conflict because both routers had the same LAN IP segment but the 

Netgear Router changed its LAN IP to 10.0.0.1 automatically (but had to powercycle the unit) and 10.0.0.2 as the starting IP address.

3.- Powercycle Netgear router

The Linksys (Primary) asigned a 192.168.1.x to the Netgear internet IP address.

The Linksys as I mentioned before is the one connected to the modem (outside world).

The goal was to keep two separate LAN's with different SSID's and passwords and with the steps followed above I was able to achieve the goal.

 

I also tried changing the Netgear's (Secundary) LAN IP segment to 192.168.2.1 and also works. Note that this change in the IP address was done before making the physical connection LAN-WAN.

 

I hope this help.

Message 9 of 9
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