Currently my network is using OSPF routing everything is ok as i have one default gateway, and the routes are propagates correctly. But what i need to achive is to propagate another default gateway in to ospf cloud but i want that this new default gateway will have a routing mark so then i can use mangle on each ospf router to specify what goes through new gateway and what through old. Unfortunately i don't have a possibility to do bgp between those two gateways.
See atachment for a small representation (sorry for uglish picture but i'm not one of those who have that thing
)OK so let say that ABCD are my ospf routers (of course my network has more routers and all in ring topology, but to simplify the problem i didn't include them) and they create so called backbone area, TP and TKT are my ISP, one is DSL and second synchronous connection. all routers are 2.9.50 (one router is 3.3 but this is in totally different area).
So what i'd like is to propagate default gateway A with routing mark say "TP" and propagate default gateway C with routing mark TKT. I set on both gateways A and C, a static default gateway and made them redistributable, and yes they appear on boxes B and D but without routing mark (:/) i assume that i should use some route filters (From routing-test), however i cannot find any good manual for that, and from what i've tried i cannot find a way to differentate default route TP from TKT, if could i would then just use set routing mark in those filters.
Can anyone help? please?