--- a/networking/udhcp/dhcpc.c +++ b/networking/udhcp/dhcpc.c @@ -327,6 +327,12 @@ int udhcpc_main(int argc UNUSED_PARAM, c /* silence "uninitialized!" warning */ unsigned timestamp_before_wait = timestamp_before_wait; + /* 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 */ + udhcp_read_interface(client_config.interface, &client_config.ifindex, NULL, client_config.arp); + //bb_error_msg("sockfd:%d, listen_mode:%d", sockfd, listen_mode); /* Was opening raw or udp socket here