b.channel(NioSocketChannel.class);
b.option(ChannelOption.SO_KEEPALIVE, true);
b.option(ChannelOption.MESSAGE_SIZE_ESTIMATOR, DefaultMessageSizeEstimator.DEFAULT);
b.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, CONFIG.peerConnectionTimeout());
b.remoteAddress(host, port);
p2pHandler.setMsgQueue(messageQueue);
p2pHandler.setPeerDiscoveryMode(true);
p2pHandler.activate();