CONFIG_NETWORKING=y CONFIG_NETWORKING_WITH_LOGGING=y CONFIG_NETWORKING_WITH_6LOWPAN=y CONFIG_NETWORKING_WITH_15_4=y CONFIG_NET_15_4_LOOPBACK_NUM=1 CONFIG_IP_BUF_RX_SIZE=5 CONFIG_IP_BUF_TX_SIZE=3 CONFIG_TI_CC2520_LEGACY=y