diff --git a/bird/peers/ospf/ospf_ipv4.conf b/bird/peers/ospf/ospf_ipv4.conf
index 773fa74..dd693db 100644
--- a/bird/peers/ospf/ospf_ipv4.conf
+++ b/bird/peers/ospf/ospf_ipv4.conf
@@ -1,7 +1,10 @@
 protocol ospf v3 ospf_ipv4 {
     ipv4 {
         table ospf4;
-        import all;
+        import filter {
+            bgp_large_community.add((UNET_ASN,1,0));
+            accept;
+        };
         export filter { 
             if bgp_large_community !~ [(UNET_ASN, 301,0)] then reject;
             accept;
diff --git a/bird/peers/ospf/ospf_ipv6.conf b/bird/peers/ospf/ospf_ipv6.conf
index f01e591..2f708c6 100644
--- a/bird/peers/ospf/ospf_ipv6.conf
+++ b/bird/peers/ospf/ospf_ipv6.conf
@@ -1,7 +1,10 @@
 protocol ospf v3 ospf_ipv6 {
     ipv6 {
         table ospf6;
-        import all;
+        import filter {
+            bgp_large_community.add((UNET_ASN,1,0));
+            accept;
+        };
         export filter { 
             if bgp_large_community !~ [(UNET_ASN, 301,0)] then reject;
             accept;