diff --git a/center.js b/center.js
index f4ae752..96e543d 100644
--- a/center.js
+++ b/center.js
@@ -28,7 +28,6 @@ if (options.help) {
 	process.exit(0);
 }
 
-const metricManager = new MetricManager(options);
 
 verifyDefaults(options, centerOptions);
 verifyExists(options.port, "Port can not be undefined or empty! (--port)", logger);
@@ -40,6 +39,7 @@ let sent = 0;
 let success = 0;
 let failed = 0;
 const sendTimer = new NanoTimer();
+const metricManager = new MetricManager(options);
 
 // TODO: Fix issue where a client disconnecting does not stop this timer
 // TODO: Fix issue where only one session is being utilized because they all share the same timer
@@ -118,6 +118,36 @@ const server = smpp.createServer(
 				session.close();
 			}
 		});
+		session.on("bind_transmitter", function (pdu) {
+			if (pdu.system_id === options.systemid && pdu.password === options.password) {
+				sessionLogger.info("Client connected");
+				session.send(pdu.response());
+				startInterval(session, sessionLogger);
+			} else {
+				sessionLogger.warn(
+					`Client tried to connect with incorrect login ('${pdu.system_id}' '${pdu.password}')`
+				);
+				pdu.response({
+					command_status: smpp.ESME_RBINDFAIL,
+				});
+				session.close();
+			}
+		});
+		session.on("bind_receiver", function (pdu) {
+			if (pdu.system_id === options.systemid && pdu.password === options.password) {
+				sessionLogger.info("Client connected");
+				session.send(pdu.response());
+				startInterval(session, sessionLogger);
+			} else {
+				sessionLogger.warn(
+					`Client tried to connect with incorrect login ('${pdu.system_id}' '${pdu.password}')`
+				);
+				pdu.response({
+					command_status: smpp.ESME_RBINDFAIL,
+				});
+				session.close();
+			}
+		});
 		session.on("enquire_link", function (pdu) {
 			session.send(pdu.response());
 		});
diff --git a/client.js b/client.js
index 1cdf461..dd8cd96 100644
--- a/client.js
+++ b/client.js
@@ -38,6 +38,7 @@ let sent = 0;
 let success = 0;
 let failed = 0;
 const sendTimer = new NanoTimer();
+const metricManager = new MetricManager(options);
 
 function startInterval(session, sessionLogger, metrics) {
 	if (!metrics.progress && options.bars === true) {
@@ -95,8 +96,6 @@ function startInterval(session, sessionLogger, metrics) {
 	);
 }
 
-const metricManager = new MetricManager(options);
-
 for (let i = 0; i < options.sessions; i++) {
 	const sessionLogger = createSessionLogger(options, i);
 	sessionLogger.info(`Connecting to ${options.host}:${options.port}...`);