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homerwsmith
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Need Help and Direction on OSPF

Mon Feb 13, 2017 9:21 am

Dear Folks,

We have a simple base ball diamond shaped network, with routers at home, first, second and third bases.

The internet is connected to home, and home connects to first and to third, and then finally both first and
third connect to second.

Each base then has a simple star shape network that distributes feeds to customer premises.

All this is done with mikrotik/ospf and linux/quagga routers, and ubiquity wireless links.

There are presently static default routes on every router.

I would like to set up ospf on each router so the flow from home to first say would reroute to home to third to second to first if
home to first goes down. To do this the static default routes have to float to aim in the correct direction if a link is down.

So where do I learn how to do this?

1.) If any part of the diamond link goes down, traffic will reroute the other way from any base to any base.

2.) How to set up the default routing so static default routes pointing to a down link don't stop the traffic.

3.) The traffic that needs to go from home to first exceeds the capacity of the link, so using static routes half of it is directed
from home to third, to second to first. But it still comes back on the return route directly from first to home due to the static route at first directin all return traffic directly to home. It would be useful to be able to change the default gateway at first so that traffic that came to first via the long route from home to third and second to first, went back home along the same route, while traffic that went directly from home to first came back via first to home.

Thank you in advance,

Homer W Smith, CEO
Lightlink Internet
 

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