OSPF Filter for Source IP Address

RouterOS Forwarding Protocols
1

My OSPF setup is like image below.

I need to force different path for different IP Source Address/Destination (blue over LINK1 and green over LINK2)
Can make this on OSPF using Routing Filter?
Other solutions?

Best regards.

2

I think, you can use one link (in one direction) in a time - with OSPF.
You can force link1 to downstream and link2 to upstream with OSPF, but for selecting links based on source and/or destination, you have to use BGP.

OSPF always selects the shortest past (based on cost) and have no filter actions like BGP

3

Thanks for answer :wink:

I not know BGP protocol (I only know that exist), so can you help me help me?
Some tricks?

4

Personally, I would say that it’s probably better not to differentiate the two links like that - let both serve traffic for both flows using equal-cost-multi-path routes (which OSPF will happily install into your routing table for you)

5

My customer is a bit “stupid” and want to differentiate flow as explained for some source IP :frowning:
At this moment, because is active MPLS and VPLS, I can make differentations
for one end-poin of VPLS tunnels (one direction flow)…

tnx :wink:

6

I would use policy based routing. You tag the flows with mangle and route on the tag. There is a use case on my network that I had to do this where a small segment of traffic does not flow over the OSPF best path.

7

I agree, but so need to replicate mangle rules and route (mark) on each node.
Edit/add/delete rules need to manage all nodes…

A solution is Traffic Engineering, but I search for simpler implementation…