Hello, I need to do below topology with Mikrotik. But how ?

RouterOS Forwarding Protocols
1

Hello,

I want to setup Public DNS Server like opendns.com

But I need DNS Load Balance and I don’t know how to LB with Mikrotik..

I need to do it below topology in mikrotik.

Thank you for helpers and suggesters.

2

You’ll need to load balance across different servers…
I’m not aware of such a function directly available in the RouterOS.
It should be possible though with PCC - Per Connection Classifier in the ip firewall.

3

Is there a reason you have to use a MikroTik router specifically? PCC can do basic load balancing in a round robin fashion, but will require more customization to perform health checks and balance by least number of connections.

You might want to check out http://www.zenloadbalancer.com/downloads/

It is open source and does exactly what you’re looking for…MikroTik routers are great for a variety of applications, but I would recommend a purpose built LB for what you’re doing.