diff --git a/lib/ildus/server/handler.rb b/lib/ildus/server/handler.rb
index efa0251..c363e70 100644
--- a/lib/ildus/server/handler.rb
+++ b/lib/ildus/server/handler.rb
@@ -194,6 +194,23 @@ module Ildus
         prot_msg 240, host, addr
       end
 
+      def upnp_cmd(host, interval, addr=nil)
+        raise NotAuthError unless @account.authenticated?
+        # FIXME: actually do something with the interval!
+        if addr.nil?
+          addr = Socket.getnameinfo(@io.getpeername).first
+          addr = IPAddr.new(addr)
+        else
+          addr = IPAddr.new(addr)
+        end
+        @commit ||= @domain.update_host(host, addr)
+      rescue HostNotFoundError
+        prot_msg 425, host
+      rescue RecordNotFoundError
+        prot_msg 426, type, host
+      else
+        prot_msg 240, host, addr
+      end
       def adda_cmd(host, new_alias)
         raise NotImplementedError
       end