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Consumer grade DSLs are way cheaper than getting at leased line, so for my building complex I am considering getting a bunch of DSLs instead of a leased line.

I feel confident that I am not the first to do that, so I am wondering if there is a Linux router that will somehow distribute the traffic over these DSLs. We are not talking about real bundling as the ISP should not be required to do anything.

My initial ideas are along the lines of computing a hash based on sender IP and recipient C-class and based on this hash choose the DSL, so all packets between a given client and server will always take the same DSL. And if a DSL goes down it should of course not be chosen.

But as I said: I cannot be the first to do this, so I feel confident there is a tested way of doing this.

Ole Tange
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2 Answers2

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This is ridiculous.

When you lead the question with making an ill-informed decision to save up-front costs, it shows that you're not considering the big picture.

Do the right thing and get a network ISP appropriate for the organization.

Consumer class DSL is almost never the right option for a business and comes with limitations on performance, latency, support and overall SLA. Considering that multiple DSL lines from one provider will also use the same copper infrastructure, you'll gain no benefits in resiliency or throughput.

As to the question about leveraging multiple ISPs, yes, there are products and solutions that can accomplish that. Google "link balancer" for options. The Elfiq link balancer is a well-equipped solution.

Most modern firewalls can also handle multiple ISP uplinks (see: "dual WAN").

Community
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ewwhite
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It seems there is a solution here:

http://www.peplink.com/knowledgebase/balance-one-and-the-5-wan-license/

It gives 5 wan links, and 400 Mbps is plenty for my use.

Finally the price seems reasonable. https://www.amazon.com/gp/product/B011VDJWSA

Ole Tange
  • 3,186