Hello, my task is redistribute default route from r2 only to backbone. My simplified configuration is

r1 192.168.0.1 backbone, 8.5.5.5 (wan)
r2 192.168.0.2 backbone, 10.0.8.1 area1, 8.7.7.7 (wan)
r3 192.168.5.1 area1, 10.0.8.2 area1
i enable default route redistribution in r2 ospf instanse settings.
in r3 i need routes to 192.168.0.0, but not need 0.0.0.0/0.
i can't use routing filter in r3 because i have many routers in area1 and i I do not want to reapeat it at each other.