protocol pipe dn42v4_sync {
  table dn42v4;
  peer table master4;
  export filter {
    if bgp_large_community ~ [(DN42_ASN, 3,*)] then reject;
    if !is_dn42_prefix() then reject;
    bgp_community.empty;
    bgp_large_community.empty;
    bgp_large_community.add((UNET_ASN,10,4));
    krt_prefsrc = DN42_V4_kernel;
    accept;
    };
  import none;
}