--- a/cli-tcpfwd.c	Wed Dec 02 22:37:51 2015 +0800
+++ b/cli-tcpfwd.c	Tue Dec 15 22:24:34 2015 +0800
@@ -60,6 +60,23 @@
 };
 #endif
 
+#ifdef ENABLE_CLI_ANYTCPFWD
+static void fwd_failed(const char* format, ...) ATTRIB_PRINTF(1,2);
+void fwd_failed(const char* format, ...)
+{
+	va_list param;
+	va_start(param, format);
+
+	if (cli_opts.exit_on_fwd_failure) {
+		_dropbear_exit(EXIT_FAILURE, format, param);
+	} else {
+		_dropbear_log(LOG_WARNING, format, param);
+	}
+
+	va_end(param);
+}
+#endif
+
 #ifdef ENABLE_CLI_LOCALTCPFWD
 void setup_localtcp() {
 	m_list_elem *iter;
@@ -75,7 +92,7 @@
 				fwd->connectaddr,
 				fwd->connectport);
 		if (ret == DROPBEAR_FAILURE) {
-			dropbear_log(LOG_WARNING, "Failed local port forward %s:%d:%s:%d",
+			fwd_failed("Failed local port forward %s:%d:%s:%d",
 					fwd->listenaddr,
 					fwd->listenport,
 					fwd->connectaddr,
@@ -181,7 +198,10 @@
 		struct TCPFwdEntry *fwd = (struct TCPFwdEntry*)iter->item;
 		if (!fwd->have_reply) {
 			fwd->have_reply = 1;
-			dropbear_log(LOG_WARNING, "Remote TCP forward request failed (port %d -> %s:%d)", fwd->listenport, fwd->connectaddr, fwd->connectport);
+			fwd_failed("Remote TCP forward request failed (port %d -> %s:%d)",
+					fwd->listenport,
+					fwd->connectaddr,
+					fwd->connectport);
 			return;
 		}
 	}