PPPoS configurations for the lwIP Stack

Question

I am working on the lwIP stack with the ATSAMV71 microcontroller. I would like to configure the lwIP stack in PPPoS mode using a TCP/IP connection. Will you please help me to know,

1. What is required #define the configurations required to put the lwIP stack into PPPoS mode?

Answer 1

/*
   ---------------------------------
   ---------- PPP options ----------
   ---------------------------------
*/
#define PPP_SUPPORT                              1
#define PAP_SUPPORT                              1
#define LWIP_DNS                                 1

/*
   ---------------------------------
   --------- GPRS options ----------
   ---------------------------------
*/
#define GPRS_DEBUG                               LWIP_DBG_OFF
#define GPRS_SUPPORT                             1
#define GPRS_TYPE                                1
#define GPRS_OWNTHREAD                           1
#define GPRS_THREAD_NAME                         "pppos"
#define GPRS_RUNTIME_APN                         1
#define GPRS_RUNTIME_PIN                         1
#define GPRS_COMMAND_DELAY                       500
#define GPRS_ICCID                               1
#define GPRS_THREAD_STACKSIZE                    512
#define GPRS_THREAD_PRIO                         2
#define GPRS_PPPIF_NAME_0                        'P'
#define GPRS_PPPIF_NAME_1                        '0'