diff --git a/lib/community-net186.conf b/lib/community-net186.conf
index 6064b65..9e86baf 100644
--- a/lib/community-net186.conf
+++ b/lib/community-net186.conf
@@ -20,26 +20,21 @@ function net186_import_filter (int POPID)
     # Route is via East Asia & Oceania
     if bgp_large_community ~ [(LOCAL_ASN, 122, 400..500)] then viaRegion = viaRegion + 1;
 
-    if viaRegion > 2 then reject;
+    if viaRegion > 2 then return false;
     else if viaRegion = 2 then bgp_local_pref = bgp_local_pref - 50;
-    else if viaRegion then bgp_local_pref = 0;
 
     # Route is via China mainland but not advertise in China mainland.
-    if (LOCAL_ASN, 122, 430) ~ bgp_large_community && REGION != 430 && (LOCAL_ASN, 120, 430) ~ bgp_large_community then {
-        reject;
-    }
+    if (LOCAL_ASN, 122, 430) ~ bgp_large_community && REGION != 430 && (LOCAL_ASN, 120, 430) ~ bgp_large_community then return false;
 
     bgp_local_pref = bgp_local_pref - filter(bgp_large_community, [(LOCAL_ASN, 122, *)]).len * 10;
 };
 
-function net186_export_filter (POPID) {
-    if (65535, 65282) ~ bgp_community then {
-        reject;
-    }
+function net186_export_filter (int POPID) {
+    if (65535, 65282) ~ bgp_community then return false;
 
     if (65535, 65283) ~ bgp_community then {
-        if (POPID % 10) != (POP % 10) then {
-            reject;
+        if (POPID / 10) != (POP / 10) then {
+            return false;
         }
     }
 };
\ No newline at end of file
diff --git a/lib/community-peer.conf b/lib/community-peer.conf
index 3bc8033..5bfcd32 100644
--- a/lib/community-peer.conf
+++ b/lib/community-peer.conf
@@ -8,18 +8,18 @@ function is_peer_route() {
 }
 
 function direct_peer_import_filter(int ASN) {
-    if !is_valid() then reject;
+    if !is_valid() then return false;
     pub_add_communities(ASN, 0);
     pub_preprocess_communities();
-    if !is_peer_route() then reject;
-    accept;
+    if !is_peer_route() then return false;
+    return true;
 }
 
 function direct_peer_export_filter(int ASN) {
-    if !is_valid() then reject;
+    if !is_valid() then return false;
     # Delete Self eBGP Confed Path.
     bgp_path.delete([4200000000..4225479999]);
     pub_process_communities(ASN, 10);
-    if !is_peer_route() then reject;
-    accept;
+    if !is_peer_route() then return false;
+    return true;
 }
\ No newline at end of file
diff --git a/lib/community-transit.conf b/lib/community-transit.conf
index 8930e9e..577f150 100644
--- a/lib/community-transit.conf
+++ b/lib/community-transit.conf
@@ -54,39 +54,39 @@ function pub_process_communities(int ASN, int type) {
         bgp_community.add((65535, 65283));
     }
 
-    if (65535, 65281) ~ bgp_community then reject;
-    if (65535, 65282) ~ bgp_community then reject;
-    if (65535, 65283) ~ bgp_community then reject;
+    if (65535, 65281) ~ bgp_community then return false;
+    if (65535, 65282) ~ bgp_community then return false;
+    if (65535, 65283) ~ bgp_community then return false;
     
     if (LOCAL_ASN, 2, ASN) ~ bgp_large_community then reject
 
     # PEER
     if (type<10) then {
-        if (LOCAL_ASN, 1, 1) ~ bgp_large_community then reject;
+        if (LOCAL_ASN, 1, 1) ~ bgp_large_community then return false;
 
     # UPSTREAM
     } else if (type=10) then {
-        if (LOCAL_ASN, 1, 0) ~ bgp_large_community then reject;
+        if (LOCAL_ASN, 1, 0) ~ bgp_large_community then return false;
 
     # DOWNSTREAM
     } else if (type=20) then {
-        if (LOCAL_ASN, 1, 2) ~ bgp_large_community then reject;
+        if (LOCAL_ASN, 1, 2) ~ bgp_large_community then return false;
     }
 
 }
 
 function transit_import_filter(int ASN) {
-    if !is_valid() then reject;
+    if !is_valid() then return false;
     pub_add_communities(ASN, 10);
     pub_preprocess_communities();
-    accept;
+    return true;
 }
 
 function transit_export_filter(int ASN) {
-    if !is_valid() then reject;
+    if !is_valid() then return false;
     # Delete Self eBGP Confed Path.
     bgp_path.delete([4200000000..4225479999]);
     pub_process_communities(ASN, 10);
-    if bgp_path.last !~ DOWNSTREAM_ASN then reject;
-    accept;
+    if bgp_path.last !~ DOWNSTREAM_ASN then return false;
+    return true;
 }
\ No newline at end of file
diff --git a/protocol/external_network.conf b/protocol/external_network.conf
index 872711d..a43eabb 100644
--- a/protocol/external_network.conf
+++ b/protocol/external_network.conf
@@ -1,8 +1,8 @@
 template bgp pub_transit {
     local as LOCAL_ASN;
     ipv6 {
-        import filter transit_import_filter(6939);
-        export filter transit_export_filter(6939);
+        import where transit_import_filter(6939);
+        export where transit_export_filter(6939);
     }
 }
 
@@ -10,8 +10,8 @@ template bgp pub_peer {
     local as LOCAL_ASN;
     
     ipv6 {
-        import filter direct_peer_import_filter(6939);
-        export filter direct_peer_export_filter(6939);
+        import where direct_peer_import_filter(6939);
+        export where direct_peer_export_filter(6939);
     }
 }
 
@@ -19,7 +19,7 @@ template bgp pub_downstream {
     local as LOCAL_ASN;
 
     ipv6 {
-        import filter downstream_import_filter(6939);
-        export filter downstream_export_filter(6939);
+        import where downstream_import_filter(6939);
+        export where downstream_export_filter(6939);
     }
 }
\ No newline at end of file