add dn42

2025-10-30 10:25:57 +08:00
parent 0a2ed5e91f
commit 947a310e20
12 changed files with 218 additions and 63 deletions
--- a/bird/function/dn42.conf
+++ b/bird/function/dn42.conf
@@ -0,0 +1,35 @@
+ipv4 table dn42v4;
+ipv6 table dn42v6;
+
+function dn42_is_valid_network() {
+  return net ~ [
+    172.20.0.0/14{21,29}, # dn42
+    172.20.0.0/24{28,32}, # dn42 Anycast
+    172.21.0.0/24{28,32}, # dn42 Anycast
+    172.22.0.0/24{28,32}, # dn42 Anycast
+    172.23.0.0/24{28,32}, # dn42 Anycast
+  ];
+}
+
+function dn42_is_valid_network_v6() {
+  return net ~ [
+    fd00::/8{44,64} # ULA address space as per RFC 4193
+  ];
+}
+
+protocol pipe dn42v6_sync {
+  table dn42v4;
+  peer table master4;
+  export filter {
+    if bgp_large_community ~ [(DN42_ASN, 3,*)] then reject;
+    accept;
+    };
+}
+protocol pipe dn42v6_sync {
+  table dn42v6;
+  peer table master6;
+  export filter {
+    if bgp_large_community ~ [(DN42_ASN, 3,*)] then reject;
+    accept;
+    };
+}