package/busybox/patches/243-udhcpc_changed_ifindex.patch

   1 --- a/networking/udhcp/dhcpc.c
   2 +++ b/networking/udhcp/dhcpc.c
   3 @@ -320,6 +320,12 @@ int udhcpc_main(int argc UNUSED_PARAM, c
   4         for (;;) {
   5                 unsigned timestamp_before_wait;
   6
   7 +               /* When running on a bridge, the ifindex may have changed (e.g. if
   8 +                * member interfaces were added/removed or if the status of the
   9 +                * bridge changed).
  10 +                * Workaround: refresh it here before processing the next packet */
  11 +               udhcp_read_interface(client_config.interface, &client_config.ifindex, NULL, client_config.arp);
  12 +
  13                 if (listen_mode != LISTEN_NONE && sockfd < 0) {
  14                         if (listen_mode == LISTEN_KERNEL)
  15                                 sockfd = udhcp_listen_socket(/*INADDR_ANY,*/ CLIENT_PORT, client_config.interface);