Index: dhcp.c
==================================================================
--- a/dhcp.c
+++ b/dhcp.c
@@ -201,13 +201,16 @@
 				e = p + sizeof(dhcp->servername);
 			} else
 				goto exit;
 			break;
 		case DHO_OPTIONSOVERLOADED:
-			/* Ensure we only get this option once */
+			/* Ensure we only get this option once by setting
+			 * the last bit as well as the value.
+			 * This is valid because only the first two bits
+			 * actually mean anything in RFC2132 Section 9.3 */
 			if (!overl)
-				overl = p[1];
+				overl = 0x80 | p[1];
 			break;
 		}
 		l = *p++;
 		p += l;
 	}