prj.conf

CONFIG_NETWORKING=y
CONFIG_NET_SOCKETS=y
CONFIG_NET_TCP=y
CONFIG_NET_LOG=y

CONFIG_NET_IPV6_RA_RDNSS=y
CONFIG_NET_IF_UNICAST_IPV6_ADDR_COUNT=3
CONFIG_NET_IF_MCAST_IPV6_ADDR_COUNT=2

CONFIG_PRINTK=y
CONFIG_STDOUT_CONSOLE=y

# Enable IPv6 support
CONFIG_NET_IPV6=n
# Enable IPv4 support
CONFIG_NET_IPV4=y

# Enable the MQTT Lib
CONFIG_MQTT_LIB=y

CONFIG_NET_CONFIG_SETTINGS=y
CONFIG_NET_CONFIG_MY_IPV6_ADDR="2001:db8::1"
CONFIG_NET_CONFIG_PEER_IPV6_ADDR="2001:db8::2"

CONFIG_NET_CONFIG_MY_IPV4_ADDR="192.168.31.135"
CONFIG_NET_CONFIG_PEER_IPV4_ADDR="192.168.31.215"

CONFIG_MAIN_STACK_SIZE=2048

# For IPv6
CONFIG_NET_BUF_DATA_SIZE=256

# DNS
CONFIG_NET_SHELL=y
CONFIG_DNS_SERVER_IP_ADDRESSES=y
CONFIG_DNS_SERVER1="8.8.8.8"
CONFIG_DNS_RESOLVER=y

# buffer
CONFIG_SHELL_BACKEND_SERIAL_TX_RING_BUFFER_SIZE=120

CONFIG_ENTROPY_STM32_RNG=n
CONFIG_ENTROPY_GENERATOR=n
CONFIG_TEST_RANDOM_GENERATOR=y