--- iputils/arping.c.unaligned	2001-10-06 00:42:47.000000000 +0200
+++ iputils/arping.c	2003-10-02 15:14:42.000000000 +0200
@@ -332,7 +332,7 @@
 			timeout = atoi(optarg);
 			break;
 		case 'I':
-			device = optarg;
+			device = strdup(optarg);
 			break;
 		case 'f':
 			quit_on_reply=1;