2 WAN (DSL) and one router

[nsffree]

Hi
I am an amateur so I hope you won't laugh at my question I have 2 DSL (wan) in the house of course from two different ISP and 2 DSL modems I want to Use one Router (LAN) to use them both, not at the same time of course and switch between two ISP from router settings (not like now connecting and disconnecting network cables). my main question is can I do so with a simple switch ??? for example ES 3305p or any other 5 port simple switch???
my router is Linksys 6100
thank you guys

 

[PacManCan]

Hello,

No you cannot do this with a switch. You need a dual WAN router such as a Draytek 2830n. In that scenario you can use one of your DSL modems into the WAN2 socket and configure as PPOE and the second DSL connection will do direct into the Draytek's WAN1 (ADSL socket).

From there you can setup things like fail-over or load balancing policies.

There are probably cheaper dual wan routers, but Draytek's are quality bits of kit.

PacManCan

 

[nsffree]

Hello,

No you cannot do this with a switch. You need a dual WAN router such as a Draytek 2830n. In that scenario you can use one of your DSL modems into the WAN2 socket and configure as PPOE and the second DSL connection will do direct into the Draytek's WAN1 (ADSL socket).

From there you can setup things like fail-over or load balancing policies.

There are probably cheaper dual wan routers, but Draytek's are quality bits of kit.

PacManCan

Thank your for your answer I searched and asked a little I have been suggested a solution but not sure it will work I was told to use the switch and setup two DNS in main router setting and each DNS for one of the specific modem IP so each time by changing the dns it will use the other modem?!?!? is it logical or I am making fun of myself? 😀

and of course your solution is totally great but way out of my budget changing network cable time to time is more affordable and kind of sport 😀

 

[PacManCan]

Do the modems hold the username and password for the broadband connections or are they simple modems that sync the adsl and the router hold the details of the broadband?

The suggested sounds like a recipe for problems to be honest, dual WAN router would be the way to go. I work in IT and wouldn't even consider setting it up in that way.

I have a 2830n, nice thing is I can setup the Wireless to go through one WAN and wired devices like PS4 and PC to go through another WAN etc etc.

http://www.draytek.co.uk/products/business/vigor-2830

PacManCan

 

[nsffree]

Do the modems hold the username and password for the broadband connections or are they simple modems that sync the adsl and the router hold the details of the broadband?

The suggested sounds like a recipe for problems to be honest, dual WAN router would be the way to go. I work in IT and wouldn't even consider setting it up in that way.

I have a 2830n, nice thing is I can setup the Wireless to go through one WAN and wired devices like PS4 and PC to go through another WAN etc etc.

http://www.draytek.co.uk/products/business/vigor-2830

PacManCan

yep they are both DSL 2.4 ghz routers (Tp-link and billion)and they can connect to internet separately (have ISP user pass). my new router is 5ghz and I wanted to turn off both 2.4ghz routers because too crowded channels and lots of noise. so you mean if they are both routers is it possible to use the switch???
thank you

 

[PacManCan]

Just so I am clear, you are looking to have 3 routers in total on the network?

 

[nsffree]

Just so I am clear, you are looking to have 3 routers in total on the network?

totally right two DSL router 150N 2.4ghz that are connected directly to phone line and a dual band 1200ac Router. If we imagine number 3 Is my 5ghz router I use cable from router number 1 to number 3 internet socket and when I need the other Isp remove the cable and use another cable from number 2 to number 3

 

[nsffree]

Do I explain bad or is it clear ?

 

[PacManCan]

Sounds like a nightmare. I dont really see the benefit as you cannot tell the devices on the network to use a specific router without letting some get details from DHCP and some with static addresses, but if I absolutely had to, this is how I would do it:

1. Ensure all 3 routers are on the same subnet but different static IP's - Router 1 = 192.168.1.1/ Router 2 = 192.168.1.2/ Router 3 (5gz) = 192.168.1.3
2. Disable DHCP on all routers apart from the one you want any wireless devices to connect to the internet though e.g. Router 1. You cant have multiple DHCP servers on the same network.
3. Disable Wifi on Routers 1 and 2, keeping it enabled on Router 3 for 5ghz
4. Plug all 3 into your network switch.

In this scenario the router that has the DHCP would assign any devices just randomly connecting to the network an address and route their traffic out on its WAN. Router 3 is then effectively acting as a wireless access point.

If you then want some devices to use the other WAN you would need to set their network cards with a static IP and DNS server. For example, your PC you could set the following:

IP: 192.168.1.250
Subnet: 255.255.255.0
Default Gateway (router 2): 192.168.1.2
DNS: 192.168.1.2 or the WAN IP of that ISP's DNS server like 81.**.124.** or use Googles DNS of 8.8.8.8

If i was asked to do this for a customer I would likely tell them no and offer a Dual WAN router and 5ghz wirless access point.

Hope that helps

PacManCan

 

[PacManCan]

Your router wont have an option just to switch to a different ISP, you need a dual wan router for that.

 

[nsffree]

Sounds like a nightmare. I dont really see the benefit as you cannot tell the devices on the network to use a specific router without letting some get details from DHCP and some with static addresses, but if I absolutely had to, this is how I would do it:

1. Ensure all 3 routers are on the same subnet but different static IP's - Router 1 = 192.168.1.1/ Router 2 = 192.168.1.2/ Router 3 (5gz) = 192.168.1.3
2. Disable DHCP on all routers apart from the one you want any wireless devices to connect to the internet though e.g. Router 1. You cant have multiple DHCP servers on the same network.
3. Disable Wifi on Routers 1 and 2, keeping it enabled on Router 3 for 5ghz
4. Plug all 3 into your network switch.

In this scenario the router that has the DHCP would assign any devices just randomly connecting to the network an address and route their traffic out on its WAN. Router 3 is then effectively acting as a wireless access point.

If you then want some devices to use the other WAN you would need to set their network cards with a static IP and DNS server. For example, your PC you could set the following:

IP: 192.168.1.250
Subnet: 255.255.255.0
Default Gateway (router 2): 192.168.1.2
DNS: 192.168.1.2 or the WAN IP of that ISP's DNS server like 81.**.124.** or use Googles DNS of 8.8.8.8

If i was asked to do this for a customer I would likely tell them no and offer a Dual WAN router and 5ghz wirless access point.

Hope that helps

PacManCan

Cool thank you I would have bought it if it was anywhere available here but I tried to use what I have. So many thanks for your solution I will try it out asap but one more question can I use any network switch? (ex: es 3305p)

 

[nsffree]

I think I get it wrong should I turn DHCP on just on router 3(only WiFi) or in 2?

 

[PacManCan]

Yeah any switch should be able to handle that. Don't turn on DHCP on Router 3, as by default it will tell any devices to use itelf as the default gateway for an internet connection and it has no dsl cable to provide that.

You need to enable DHCP on either Router 1 or 2, depending on which ISP you would prefer the devices connecting to the Wifi to use. Router 3 will just act as an access point and allow the wifi device to connect to your network, the device will them pickup it's IP address, default gateway and DNS from the router that has DHCP enabled on it.

Also ensure your DHCP range starts at for e.g 192.168.1.10, this ensure no other device will try to get the same IP as your 3 routers and also leaves you from 192.168.1.4 to 192.168.1.9 for other static devices using the other WAN as mentioned above.

PacManCan

 

[nsffree]

Yeah any switch should be able to handle that. Don't turn on DHCP on Router 3, as by default it will tell any devices to use itelf as the default gateway for an internet connection and it has no dsl cable to provide that.

You need to enable DHCP on either Router 1 or 2, depending on which ISP you would prefer the devices connecting to the Wifi to use. Router 3 will just act as an access point and allow the wifi device to connect to your network, the device will them pickup it's IP address, default gateway and DNS from the router that has DHCP enabled on it.

Also ensure your DHCP range starts at for e.g 192.168.1.10, this ensure no other device will try to get the same IP as your 3 routers and also leaves you from 192.168.1.4 to 192.168.1.9 for other static devices using the other WAN as mentioned above.

PacManCan

Thank you for your kind help !!! I will inform you about the result.

 

[nsffree]

Well thank your for your assistance I did it. it was semi successful I can change between two dsl modems but just through linksys smart wifi not from the IPv4 settings in pc.
for router 1 DHCP on first ISP(WAN) side is on and on lan is off. wifi is off
for router 2 DHCP is totally on wifi is also on for others to use the second ISP through it
for router 3 linksys DHCP is on on the Lan side but off on the WAN side.
so at last I use the first isp just changing (gateway and IP and DNS) 192.168.1.254 and using the second isp just by changing to 192.168.1.1 so not that difficult
a funny thing if I connect cable two router 2 it connect to ISP 1 when I trace back but when I connect by wifi it trace back on second ISP 😀
Thank you Pacmancan 😀

 

[PacManCan]

hi, you can expect issues having two DHCP server on the same lan, but glad to hear things are working. Please mark my most relevant post as the answer.

PacManCan