Hi, any help will be very welcome.
We run about 30 RouterOS machines including a gateway server with public AS that advertises our public /21 network.
There are several OSPF routing networks inside the /21 network, with multiple routes to each subnet on /29 or /30 routing networks.
The problem we have is that each router needs a static default IP V4 route to be added (the other end of a connected routing OSPF network), or traffic does not traverse the BGP gateway. This is a problem, because although if we have an equal cost route, we can share load across the routes, if the link with the static default route is broken, the whole leg is disabled, so load-balancing, but no resilience.
In other words, if we simply use the OSPF (type 2) network to propagate routes, we can ping/tracert to any other internal address, but whilst we can resolve external addresses, we can’t ping or tracert to them unless we add static default routes. The nexthops all seem to be okay, but I just can’t understand why we need to set static default routes on all the machines running OSPF.
Your expert advice please…