protocol ospf v3 ospf_ipv6 {
    ipv6 {
        table ospf6;
        import all;
        export filter { 
            if bgp_large_community !~ [(UNET_ASN, 301,0)] then reject;
            accept;
        };
        import limit 1000 action block;
    };
    area 0 {
        interface "pccw1" {
            cost 5;
        };
    };
}

protocol static route_ospf_export_v6 {
    route 2406:840:e601:1::/64 reject;
    route 2406:840:e601:3::/64 reject;
    route 2406:840:e601:4::/63 reject;
    route 2406:840:e601:2000::/51 reject;

    ipv6 {
        table ospf6;
        import filter {
            bgp_large_community.add((UNET_ASN,301,0));# 允许导出至OSPF
            bgp_large_community.add((UNET_ASN,3,0));# 不允许导出到内核
            accept;
        };
        export none;
    };
}