I am working with NXOS ospf config and I need to filter routes coming into a specific switch. All my devices are in the same area. I have two exit points across a WAN via BGP. I am not redistributing BGP into OSPF. In IOS you can do a distribute list on a device and block routes there. In NXOS you don't have that option in OSPF and when you do a filter list it has to be under the area command. I was told that when you put that command on one switch that it propagates throughout the entire area. So wherever that area is designated the same routes are blocked or allowed. Could you please verify that and if there is a better way to accomplish this.
router ospf LAN
area 0.0.100.0 filter-list route-map OSPF_FILTER_IN in
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