Dual Wan LTE

[MrXonte]

I have 2 main questions concerning the topic of Dual Wan Routers and LTE. I have 2 Internet connections from different providers (moved in with my girlfriend and we both had one) and i now have 3 routers. 1 Fritz!Box for her wired connection, 1 LTE Router that is pretty bad (150down/50up in my contract, 30-60down/30-50up in reality with daily crashes of the router that often need multiple restarts to fix. Also the routers LAN ports are only capable of 100mbit. yey.) and 1 Router from ASUS with dual wan capabilities where both join together (in theorie)

 

1) I had quite the trouble setting up dual WAN with my current setup.

The problem (i think) being killer network management on my pc which if i uninstall disables my ethernet port and i dont have a network card. If i have dual WAN enabled it tries to balance the load of the 20mbit wired connection and the up to 150mbit LTE connection (both wired to the asus router with ethernet cables) and assigns each PC the amount of data needed (at least i think thats how it works). Killer networking on the other hand does the same with what it gets so basicly my pc gets a low amount of bandwith and instead of demanding more killer network management tries to work with that and i have like a few KB download at most with this.

Another problem is also the general issue with the bad router

 

2) Im thinking of just fixing the entire situation by buying 1 router that does it all. So does anyone know a Dual Band Router that supports Dual WAN and has LTE capabilities? Because i would love to have just 1 box standing around instead of wiring 3 into eachother.

[Falconevo]

I do this with 2 different providers, I use pfSense to do it on a custom Mini-ITX machine with 4 network interfaces in it.  I don't use LTE but the principle is the same.. You wan't to use the LTE router/modem as simply a bridge and nothing more, let the software of the router take care of the management of traffic between connections.

 

Here is a REALLY old video when I first set it up a long long time ago.  Its now way over 300Mbit these days but

Can you draw me a network diagram of how you currently have things connected, I should be able to assist a little better with more information.

 

[MrXonte]

32 minutes ago, Falconevo said:

I do this with 2 different providers, I use pfSense to do it on a custom Mini-ITX machine with 4 network interfaces in it.  I don't use LTE but the principle is the same.. You wan't to use the LTE router/modem as simply a bridge and nothing more, let the software of the router take care of the management of traffic between connections.

 

Here is a REALLY old video when I first set it up a long long time ago.  Its now way over 300Mbit these days but

Can you draw me a network diagram of how you currently have things connected, I should be able to assist a little better with more information.

 

The diagramm is how it should be^^ hopefully it helps you  the router r3 is the dual wan router asus rt-ac66u

[Falconevo]

You are doing double-NAT in both inbound directions R1 & R2 > R3, the Asus router isn't going to be happy about that.  Can you switch the R1 and R2 devices to modem/bridge mode and allow the Asus to perform the NAT'ing itself and have the public addressing on its WAN1 and WAN2 ports?

 

**EDIT** Hang on, just did some reading on the RT-AC66U and it isn't a dual wan router..  It has 1 WAN and 4 LAN ports.  It's Dual BAND, not Dual WAN.

 

[MrXonte]

8 minutes ago, Falconevo said:

You are doing double-NAT in both inbound directions R1 & R2 > R3, the Asus router isn't going to be happy about that.  Can you switch the R1 and R2 devices to modem/bridge mode and allow the Asus to perform the NAT'ing itself and have the public addressing on its WAN1 and WAN2 ports?

 

**EDIT** Hang on, just did some reading on the RT-AC66U and it isn't a dual wan router..  It has 1 WAN and 4 LAN ports.  It's Dual BAND, not Dual WAN.

 

it tells me it supports dual wan where you pluggin the second wan on LAN1

[Falconevo]

Digging a little deeper, looks like it does have 'some' support for dual-wan scenarios but I can't see this device handling it very well.

You need to start by putting each of the modem/routers R1 and R2 in bridge mode so the public IP addressing can be provided to the Asus device on WAN1 and LAN1, otherwise there is no point even attempting this.

[MrXonte]

40 minutes ago, Falconevo said:

Digging a little deeper, looks like it does have 'some' support for dual-wan scenarios but I can't see this device handling it very well.

You need to start by putting each of the modem/routers R1 and R2 in bridge mode so the public IP addressing can be provided to the Asus device on WAN1 and LAN1, otherwise there is no point even attempting this.

one of my routers seems to have some problems. its a fritz!box 7270 and not sure what to do here. it should be in bridge mode now.

[Falconevo]

You will need to authenticate with your provider, so some configuration will be required on the Asus router to performance PPPoA or PPPoE authentication for the LTE provider while the Frizbox is in bridge mode.

I am not sure if the Asus supports anything but DHCP on LAN1 for WAN-Passthrough (this is why its not very good for this).  You may have better luck placing the LTE router in WAN and configuring the required PPPoA or PPPoE configuration then having DHCP on the other device in modem/bridge mode.

 

Updated the image for you, remember both the ISP's devices need to be in modem/bridge mode or you will end up with a dual NAT and that is bad news.

[MrXonte]

20 minutes ago, Falconevo said:

You will need to authenticate with your provider, so some configuration will be required on the Asus router to performance PPPoA or PPPoE authentication for the LTE provider while the Frizbox is in bridge mode.

I am not sure if the Asus supports anything but DHCP on LAN1 for WAN-Passthrough (this is why its not very good for this).  You may have better luck placing the LTE router in WAN and configuring the required PPPoA or PPPoE configuration then having DHCP on the other device in modem/bridge mode.

 

Updated the image for you, remember both the ISP's devices need to be in modem/bridge mode or you will end up with a dual NAT and that is bad news.

that does seem to do something but it just tells me disconnected and thats probably cause i need to change the values with the red dots. And i have no idea what these should be. only the first 2 fields which are the info from my service provider. also the lte connection is running fine via LAN1 the wired connection is the one that had the problem and is now on PPPoE on WAN

[Falconevo]

1 minute ago, MrXonte said:

that does seem to do something but it just tells me disconnected and thats probably cause i need to change the values with the red dots. And i have no idea what these should be. only the first 2 fields which are the info from my service provider. also the lte connection is running fine via LAN1 the wired connection is the one that had the problem and is now on PPPoE on WAN

Was the original device in PPPoE or PPPoA?  Have you confirmed what the requirements were on the wired connection?

If its a DSL provider, they generally opt for PPPoA rather than PPPoE.  Quick call to the ISP or a check on the settings you had previously in the wired modem might say for certain.