Server configuration and bird2 example client

examples/bird2/multiprotocol_client.conf

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+##########################################################################
+#
+# Bird2 Multiprotocol Route Collector Client Example
+#
+##########################################################################
+
+protocol bgp ROUTE_COLLECTOR
+{
+  local as ***YOUR_AS***;
+
+  neighbor fd42:4242:2601:ac12::1 as 4242422601;
+  multihop;
+
+  ipv4 {
+
+    # import nothing, export everything
+    import none;
+    export all;
+
+    # export multiple paths to same destination
+    add paths tx;
+  };
+
+  ipv6 {
+
+    # import nothing, export everything
+    import none;
+    export all;
+
+    # export multiple paths to same destination
+    add paths tx;
+  };
+}
+
+##########################################################################
+# end of file

server/bird/bird.conf

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+##########################################################################
+#
+# BIRD2 Route Collector Configuration
+#
+##########################################################################
+
+# route collector AS
+define GRC_AS = 4242422601;
+
+# router ID
+router id 172.20.129.165;
+
+# logging options
+log syslog all;
+
+# enable internal watchdog
+watchdog warning 5 s;
+watchdog timeout 30 s;
+
+# set timeformat for  bird_exporter
+timeformat protocol iso long;
+
+##########################################################################
+# ignore interface up/down events
+
+protocol device { }
+
+##########################################################################
+# import filters
+
+# IPv4 import filter
+filter rc_peer_import4
+{
+  # only accept valid DN42 networks
+  # https://git.dn42.us/dn42/registry/src/master/data/filter.txt
+
+  if 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
+    172.31.0.0/16+,       # ChaosVPN
+    10.100.0.0/14+,       # ChaosVPN
+    10.0.0.0/8{15,24}     # Freifunk.net    
+
+  ] then accept;
+
+  # reject anything else
+  reject;
+}
+
+# IPv6 import filter
+filter rc_peer_import6
+{
+  # only accept valid DN42 networks
+  # https://git.dn42.us/dn42/registry/src/master/data/filter6.txt
+
+  if net ~ [
+  
+    fd00::/8{44,64}
+
+  ] then accept;
+  
+  # reject anything else
+  reject;    
+}
+
+##########################################################################
+# peer templates
+
+# IPv4 only peer
+template bgp RC_PEER4 {
+
+  local as GRC_AS;
+  multihop;
+
+  ipv4 {
+    import keep filtered;
+    import limit 10000 action block;
+
+    # accept multiple routes for same desgination
+    add paths rx;
+
+    # import valid DN42 routes, export nothing
+    import filter rc_peer_import4;
+    export none;
+  };
+
+}
+
+# IPv6 only peer
+template bgp RC_PEER6 {
+
+  local as GRC_AS;
+  multihop;
+
+  ipv6 {
+    import keep filtered;
+    import limit 10000 action block;
+
+    # accept multiple routes for same desgination
+    add paths rx;
+
+    # import valid DN42 routes, export nothing
+    import filter rc_peer_import6;
+    export none;
+  };
+
+}
+
+
+# Combined multiprotocol peer
+template bgp RC_MULTIPEER {
+
+  local as GRC_AS;
+  multihop;
+
+  ipv4 {
+    import keep filtered;
+    import limit 10000 action block;
+
+    # accept multiple routes for same desgination
+    add paths rx;
+
+    # import valid DN42 routes, export nothing
+    import filter rc_peer_import4;
+    export none;
+  };
+
+  ipv6 {
+    import keep filtered;
+    import limit 10000 action block;
+
+    # accept multiple routes for same desgination
+    add paths rx;
+
+    # import valid DN42 routes, export nothing
+    import filter rc_peer_import6;
+    export none;
+  };
+
+}
+
+##########################################################################
+# include peer definitions
+
+include "/etc/bird/peers/*.conf";
+
+##########################################################################
+# end of file