Add import filters for bgp

global/overlay/etc/puppet/modules/cdn/templates/l4lb/bird.conf.erb

@@ -28,7 +28,7 @@ protocol kernel {
     import none;
     export filter { if source = RTS_DEVICE then { reject; } accept; };
   };
-        # Create ECMP routes in kernel table from multiple paths
+# Create ECMP routes in kernel table from multiple paths
   merge paths;
 }
 
@@ -48,7 +48,10 @@ protocol bgp tug_r11_v4 {
   hold time 90;
 
   ipv4 {
-                import all;
+    import filter {
+      if net ~ [ 0.0.0.0/0 ] then
+        accept; else reject;
+    };
     export filter {
       if net ~ [ 188.240.152.0/24{32,32} ] then
         accept; else reject;
@@ -63,7 +66,10 @@ protocol bgp tug_r11_v6 {
   hold time 90;
 
   ipv6 {
-                import all;
+    import filter {
+      if net ~ [ ::/0 ] then
+        accept; else reject;
+    };
     export filter {
       if net ~ [ 2001:6b0:2100::/48{128,128} ] then
         accept; else reject;
@@ -79,7 +85,10 @@ protocol bgp tug_r12_v4 {
   hold time 90;
 
   ipv4 {
-                import all;
+    import filter {
+      if net ~ [ 0.0.0.0/0 ] then
+        accept; else reject;
+    };
     export filter {
       if net ~ [ 188.240.152.0/24{32,32} ] then
         accept; else reject;
@@ -94,7 +103,10 @@ protocol bgp tug_r12_v6 {
   hold time 90;
 
   ipv6 {
-                import all;
+    import filter {
+      if net ~ [ ::/0 ] then
+        accept; else reject;
+    };
     export filter {
       if net ~ [ 2001:6b0:2100::/48{128,128} ] then
         accept; else reject;