Support IPv6 UDP sockets

logstash-plugins · Nov 19, 2020 · 7865e3f · 7865e3f
1 parent 8d4ac25
commit 7865e3f
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/lib/logstash/inputs/syslog.rb b/lib/logstash/inputs/syslog.rb
@@ -138,7 +138,11 @@ def udp_listener(output_queue)
     @logger.info("Starting syslog udp listener", :address => "#{@host}:#{@port}")
 
     @udp.close if @udp
-    @udp = UDPSocket.new(Socket::AF_INET)
+    if IPAddr.new(@host).ipv6?
+      @udp = UDPSocket.new(Socket::AF_INET6)
+    elsif IPAddr.new(@host).ipv4?
+      @udp = UDPSocket.new(Socket::AF_INET)
+    end
     @udp.do_not_reverse_lookup = true
     @udp.bind(@host, @port)