--- a/CTRLClient.cpp
+++ b/CTRLClient.cpp
@@ -53,7 +53,7 @@ struct CClnChannelCfg {
 /* Needed by library functions ( START ) */
 bool bServerDebug = false;
 int iLogRotateHours = 24;
-int iAddrFamily = AF_INET;
+int iAddrFamily = SYS_INET64;
 static char const * const pszCClnErrors[] = {
 	"Wrong command line usage",
 	"Either none or both private key and certificate file must be supplied"
@@ -349,7 +349,7 @@ int CClnLogError(int iError)
 void CClnShowUsage(char const *pszProgName)
 {
 	fprintf(stderr,
-		"use :  %s  [-snuptfSLcKCXHD]  ...\n"
+		"use :  %s  [-snuptfSLcKCXHD4657]  ...\n"
 		"options :\n"
 		"       -s server        = set server address\n"
 		"       -n port          = set server port [%d]\n"
@@ -364,7 +364,11 @@ void CClnShowUsage(char const *pszProgNa
 		"       -X filename      = set the SSL certificate-list file\n"
 		"       -H dir           = set the SSL certificate-store directory\n"
 		"       -c               = disable MD5 authentication\n"
-		"       -D               = enable debug\n",
+		"       -D               = enable debug\n"
+		"       -4               = connect only to IPv4 addresses\n"
+		"       -6               = connect only to IPv6 addresses\n"
+		"       -5               = prefer IPv4 addresses over IPv6 addresses\n"
+		"       -7               = prefer IPv6 addresses over IPv4 addresses\n",
 		pszProgName, STD_CTRL_PORT, STD_CTRL_TIMEOUT);
 }
 
@@ -467,6 +471,22 @@ int CClnExec(int iArgCount, char *pszArg
 			bServerDebug = true;
 			break;
 
+		case '4':
+			iAddrFamily = AF_INET;
+			break;
+
+		case '6':
+			iAddrFamily = AF_INET6;
+			break;
+
+		case '5':
+			iAddrFamily = SYS_INET46;
+			break;
+
+		case '7':
+			iAddrFamily = SYS_INET64;
+			break;
+
 		default:
 			return CCLN_ERR_BAD_USAGE;
 		}