Dual ISP's with 1 modem

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Africa_PC

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Sep 6, 2013
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Hi,

I would like to setup my router to have 2 different ISP accounts. Having account computer 1 only use account "A" and computer 2 using only account "B".

The router that I have is a Trendnet-tew 658brm. It does have a multi-wan setting in advanced. In that setting it looks as if you can create profiles and point each account to a specific IP address.

I do not know entirely how to do this because I couldn't get my router to sync at all. It might just be a faulty router.

Will I need to enter the DNS manually for each ISP or can I let it obtain automatically which has not been working ?
 
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spdragoo

spdragoo

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Oct 17, 2011
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In order to set up multiple WAN connections, you need a few things. First, you should probably have multiple PVCs (Permanent Virtual Circuit) available from your home telephone line to the DSL equipment in the central office. That's the Advanced => Multi-WAN => DSL Auto Scan portion of the interface: if it doesn't see multiple PVCs, you probably don't have multiple providers available. Second, you need to know the type of connection the provider uses (PPPoE, PPPoA, IPoA, etc.), so that you can set up the connections.

However, you're going to run into 2 big obstacles. First...in order to have 2 IPs, you'll be paying two bills for Internet every month. So unless there's a practical reason for having dual Internet connections (i.e. you don't want your roommate leeching Internet service off of you), it's not worth the extra money to have multiple IP connections. Second...your router will probably not be able to separate the signals out to separate devices, not without maybe some massive editing of port forwarding settings (& even then I doubt it's going to be successful). But given that problem #1 will apply, you won't even need to worry about it...because provider #2 will have their own connection into the house (including a vendor-provided router/DSL modem), which will be separate from provider #1. So computer A will be on a completely separate router from computer B.
 
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Africa_PC

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I can see the PVC being a problem. But other than that I don't think I should run into any other problems. It is a test router because the one provided by the ISP does not support multi-wan at all. It is not vendor specific. It is a regular D-Link 2750U router. With regards to paying two bill, that is not an issue because an adsl data account here is cheap.
 
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spdragoo

spdragoo

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OK, so before we get into the technical details of why this (most likely) can't be done, we need to know why.

If I understand the situation, it's:
-- you have your own PC (PC A), & your own phone/DSL service (Telecom A)
-- your roommate/friend/whatever has his own PC (PC B) and his own DSL service (Telecom B)

DSL service requires a phone line that is available -- or, in other words, doesn't already have DSL service on it. That's because the DSLAM in the central office is set up (provisioned) by the telecom with one physical connection to the phone line. If you switch DSL providers, they physically remove the connection to the old DSLAM so that you can be connected to the new DSLAM. There is no sharing of the equipment.

So, if your buddy has his own phone line & DSL service, they should have already installed it where he needed to have it installed (just one of the reasons why install techs require a customer to be on-site when they're installing the service). If he's moved his PC, or wants additional mobility, he can simply hook a wireless router up to his own DSL modem. By the same token, if you need your service to be availabe in other parts of the house, you just hook a wireless router up to your DSL modem or run addiitonal Ethernet cables through the house.

Now, you might be able to do the opposite -- hook 2 separate DSL modems up to a single DSL line (see http://www.tomshardware.com/forum/42590-42-modems-attached-phone-line) -- but only 1 modem can go online at a time.

Essentially, I don't think you can get the Multi-WAN to work the way you're wanting it to...except that you don't need it to work that way. You already have your own Internet service, & he already has is own. Trying to share a router makes no sense for either of you.
 
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Africa_PC

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There is only one phone line as there is only one telecoms service provider in my country. I have managed to sort it out though.

I have set up the router in PPPoE with LLC Encapsulation. I have enabled PPPoE with Passthrough and there was another setting along those lines that I turned on. This enables me to dial up with another DSL account using a Broadband connection that I created on my PC. So PC A uses the router with the account that is saved in the settings. Then PC B (mine) uses the dial up connection to use the other DSL account data.

This did not work for me previously but the reason I know it is working now is because my ping in game is lower. The account that I dial in with is unshaped. The account set in the router is not.
 
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