CONFIG_NET_TESTING=y CONFIG_NETWORKING_IPV6_NO_ND=y CONFIG_TEST_RANDOM_GENERATOR=y CONFIG_NETWORKING=y CONFIG_NETWORKING_WITH_LOGGING=y CONFIG_NETWORKING_UART=y CONFIG_IP_BUF_TX_SIZE=2 CONFIG_IP_BUF_RX_SIZE=10 CONFIG_NANO_TIMEOUTS=y CONFIG_TINYDTLS=y