protocol static route_dn42_export_v4 {
    route 172.20.21.0/26 reject; 

    ipv4 {
        table dn42v4;
        import filter {
            bgp_large_community.add((DN42_ASN,3,0));# 不允许导出到内核
            bgp_large_community.add((DN42_ASN,1,0));# 不允许传输到ibgp
            bgp_large_community.add((DN42_ASN,200,0));# 传输到Ebgp
            accept;
        };
        export none;
    };
}

protocol static route_dn42_export_v6 {
    route fde8:936e:ee29::/48 reject; 
    ipv6 {
        table dn42v6;
        import filter {
            bgp_large_community.add((DN42_ASN,3,0));# 不允许导出到内核
            bgp_large_community.add((DN42_ASN,1,0));# 不允许传输到ibgp
            bgp_large_community.add((DN42_ASN,200,0));# 传输到Ebgp
            accept;
        };
        export none;
    };
}