Hello,
Does anyone have any experience using the default-originate route-map to a neighbor and having the route-map match a community?
I have a design specific requirement to advertise and originate a default route to a specific neighbor only and when a default route exists in the bgp/routing table. I am receiving a couple of default routes on my router, therefore I would like to set a specific metric based on a tag, hence I would like to match a community. Also, in the case of a route not existing in the bgp/routing table, I would not like to advertise anything.
I do not want to use the other well known methods to distribute a default route in BGP as this would have an effect on other neighbors.
Here is a sample config of what I want to configure, to me it seems like it should work, but I have only checked it on a simulator, and it does not work, so I am not sure if it's because of the simulator. I am in fact receiving the default route tagged as I need it, and in a separate test, if I match to a prefix list matching the default route, I am able to not advertise if the route is not in the bgp/routing table.
ip bgp-community new-format
!
ip community-list 1 permit 1111:2222
ip community-list 2 permit 3333:4444
!
route-map DEFAULT-ORIGINATE-OUT permit 10
match community 1
set metric 25
!
route-map DEFAULT-ORIGINATE-OUT permit 20
match community 2
set metric 20
!
router bgp 5555
neighbor 1.1.1.1 default-originate route-map DEFAULT-ORIGINATE-OUT
Thank you!
