Init ibgp routing

hosts/porter/configuration.nix

@@ -64,6 +64,8 @@
 
   ipv6 table ospf6;
   ipv4 table ospf4;
+  ipv6 table bgp6;
+  ipv4 table bgp4;
 
   protocol direct {
     interface "lo";
@@ -133,6 +135,40 @@
     };
   }
 
+  template bgp ibgp6 {
+    local as 4200002574;
+    graceful restart on;
+    source address ${ (lib.head config.networking.interfaces.lo.ipv6.addresses).address };
+    ipv6 {
+      table bgp6;
+      next hop self;
+      import keep filtered;
+      import all;
+      export all;
+    };
+  }
+
+  template bgp ibgp4 {
+    local as 4200002574;
+    graceful restart on;
+    source address ${ (lib.head config.networking.interfaces.lo.ipv4.addresses).address };
+    ipv4 {
+      table bgp4;
+      next hop self;
+      import keep filtered;
+      import all;
+      export all;
+    };
+  }
+
+  protocol bgp bgp_carbon from ibgp6 {
+    neighbor fd00:152:152:104::1 as 4200002574;
+  }
+
+  protocol bgp bgp_nonat from ibgp6 {
+    neighbor fd00:152:152:103::1 as 4200002574;
+  }
+
   protocol device {
     scan time 10;
   }