class Gem::Resolv::DNS::Requester::ConnectedUDP

def lazy_initialize
  @mutex.synchronize {
    next if @initialized
    @initialized = true
    is_ipv6 = @host.index(':')
    sock = UDPSocket.new(is_ipv6 ? Socket::AF_INET6 : Socket::AF_INET)
    @socks = [sock]
    sock.do_not_reverse_lookup = true
    DNS.bind_random_port(sock, is_ipv6 ? "::" : "0.0.0.0")
    sock.connect(@host, @port)
  }
  self
end