diff --git a/sys/interactive_info.h b/sys/interactive_info.h
new file mode 100644
index 0000000..920ac92
--- /dev/null
+++ b/sys/interactive_info.h
@@ -0,0 +1,29 @@
+#ifndef LPC_INTERACTIVE_INFO_H_
+#define LPC_INTERACTIVE_INFO_H_
+
+/* Definition of argument values for interactive_info()
+ */
+
+#include "configuration.h"
+
+/* Connection information */
+#define II_IP_NAME                      -1
+#define II_IP_NUMBER                    -2
+#define II_IP_PORT                      -3
+#define II_IP_ADDRESS                   -4
+#define II_MUD_PORT                     -5
+
+/* Telnet related information */
+#define II_MCCP_STATS                   -10
+
+/* Input handling */
+#define II_INPUT_PENDING                -20
+#define II_EDITING                      -21
+#define II_IDLE                         -22
+
+/* Output handling */
+#define II_SNOOP_NEXT                   -30
+#define II_SNOOP_PREV                   -31
+#define II_SNOOP_ALL                    -32
+
+#endif /* LPC_INTERACTIVE_INFO_H_ */