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Index: busybox-1.7.2/networking/udhcp/dhcpc.c
===================================================================
--- busybox-1.7.2.orig/networking/udhcp/dhcpc.c 2007-10-30 15:35:01.000000000 -0500
+++ busybox-1.7.2/networking/udhcp/dhcpc.c 2007-10-30 15:35:02.000000000 -0500
@@ -309,6 +309,12 @@
jump_in:
tv.tv_usec = 0;
+ /* When running on a bridge, the ifindex may have changed (e.g. if
+ * member interfaces were added/removed or if the status of the
+ * bridge changed).
+ * Workaround: refresh it here before processing the next packet */
+ read_interface(client_config.interface, &client_config.ifindex, NULL, client_config.arp);
+
if (listen_mode != LISTEN_NONE && sockfd < 0) {
if (listen_mode == LISTEN_KERNEL)
sockfd = listen_socket(/*INADDR_ANY,*/ CLIENT_PORT, client_config.interface);
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