diff -ur busybox.old/networking/udhcp/dhcpc.c busybox.dev/networking/udhcp/dhcpc.c
--- busybox.old/networking/udhcp/dhcpc.c	2006-11-10 00:17:26.000000000 +0100
+++ busybox.dev/networking/udhcp/dhcpc.c	2006-11-10 00:17:10.000000000 +0100
@@ -330,7 +330,7 @@
 			/* timeout dropped to zero */
 			switch (state) {
 			case INIT_SELECTING:
-				if (packet_num < client_config.retries) {
+				if (!client_config.retries || (packet_num < client_config.retries)) {
 					if (packet_num == 0)
 						xid = random_xid();
 
@@ -355,7 +355,7 @@
 				break;
 			case RENEW_REQUESTED:
 			case REQUESTING:
-				if (packet_num < client_config.retries) {
+				if (!client_config.retries || (packet_num < client_config.retries)) {
 					/* send request packet */
 					if (state == RENEW_REQUESTED)
 						send_renew(xid, server_addr, requested_ip); /* unicast */