# Override some defaults to enable PPP CONFIG_LWIP_PPP_SUPPORT=y CONFIG_LWIP_PPP_PAP_SUPPORT=y CONFIG_LWIP_TCPIP_TASK_STACK_SIZE=4096 # Do not enable IPV6 in dte<->dce link local CONFIG_LWIP_PPP_ENABLE_IPV6=n # Disable legacy API CONFIG_MODEM_LEGACY_API=n # Enable NAPT CONFIG_LWIP_IP_FORWARD=y CONFIG_LWIP_IPV4_NAPT=y