ipv4 table unet4;

function unet_is_valid_network_v4() {
  return net ~ [
    10.50.0.0/16+,
    10.88.0.0/16+,
    10.21.0.0/16+,
    10.188.0.0/16+,
    172.20.0.0/14+
  ];
}

protocol pipe unet4_sync {
  table unet4;
  peer table master4;
  export filter {
    if bgp_large_community ~ [(UNET_ASN, 3,*)] then reject;
    accept;
    };
}

function unet_is_self_net() {
  return net ~ [
    10.188.18.8/29,
    172.20.0.0/14
  ];
}

protocol static route_unet_export_v4 {
    route 10.188.18.8/29 reject; 
    route 172.20.0.0/14 reject;

    ipv4 {
        table unet4;
        import filter {
            bgp_large_community.add((UNET_ASN,3,0));# 不允许导出到内核
            bgp_large_community.add((UNET_ASN,1,0));# 不允许传输到ibgp
            bgp_large_community.add((UNET_ASN,200,0));# 传输到Ebgp
            accept;
        };
        export none;
    };
}