replace accept_local with static BGP communities

natesales · Nov 8, 2020 · f6beedc · f6beedc
1 parent 8185dca
commit f6beedc
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Showing 2 changed files with 22 additions and 18 deletions.
diff --git a/templates/global.tmpl b/templates/global.tmpl
@@ -4,27 +4,19 @@ define ASN = {{ .Asn }};
 router id {{ .RouterId }};
 
 {{ if .OriginSet4 -}}
-define LOCAL_v4 = [
-{{ BirdSet .OriginSet4 }}
-];
-
 protocol static static4 {
   ipv4;
   {{- range $i, $prefix := .OriginSet4 }}
-  route {{ $prefix }} reject;
+  route {{ $prefix }} reject { bgp_large_community.add((ASN,0,100)); };
   {{- end }}
 }
 {{- end }}
 
 {{ if .OriginSet6 -}}
-define LOCAL_v6 = [
-{{ BirdSet .OriginSet6 }}
-];
-
 protocol static static6 {
   ipv6;
   {{- range $i, $prefix := .OriginSet6 }}
-  route {{ $prefix }} reject;
+  route {{ $prefix }} reject { bgp_large_community.add((ASN,0,100)); };
   {{- end }}
 }
 {{- end }}
@@ -39,16 +31,20 @@ timeformat route iso long;
 log syslog all;
 
 protocol device {};
-
-protocol direct {
-  ipv4;
-  ipv6;
-}
+protocol direct { ipv4; ipv6; }
 
 protocol kernel {
   scan time 10;
   {{ if .OriginSet4 -}}
-  ipv4 { export all; };
+  ipv4 {
+    import filter {
+      if (net ~ [
+      {{ BirdSet .OriginSet4 }}
+      ]) then bgp_large_community.add((ASN,0,100));
+      accept;
+    };
+    export all;
+  };
   {{- else }}
   ipv4 { export none; };
   {{ end }}
@@ -57,7 +53,15 @@ protocol kernel {
 protocol kernel {
   scan time 10;
   {{ if .OriginSet6 -}}
-  ipv6 { export all; };
+  ipv6 {
+    import filter {
+      if (net ~ [
+      {{ BirdSet .OriginSet6 }}
+      ]) then bgp_large_community.add((ASN,0,100));
+      accept;
+    };
+    export all;
+  };
   {{- else }}
   ipv6 { export none; };
   {{ end }}

diff --git a/templates/peer.tmpl b/templates/peer.tmpl
@@ -74,7 +74,7 @@ protocol bgp {{ $peer.Name }}v{{ $af }}_{{ $i }} {
             {{ $peer.PreExport -}}
 
             {{- if or $global.OriginSet4 $global.OriginSet6 }}
-            accept_local(); # Originated
+            if ((ASN,0,100) ~ bgp_large_community) then accept; # Originated
             {{ end -}}
 
             {{ if eq $peer.Type "upstream" -}}