//
// lwipopts.h
//

#ifndef __LWIPOPTS_H__
#define __LWIPOPTS_H__

/* ---------- Memory options ---------- */
#define MEM_ALIGNMENT           4

#define MEM_SIZE                256000
//#define MEM_SIZE                1500

#define MEM_RECLAIM             1
#define MEMP_RECLAIM            1

#define MEMP_NUM_PBUF           1600 
#define MEMP_NUM_UDP_PCB        100
#define MEMP_NUM_TCP_PCB        500
#define MEMP_NUM_TCP_PCB_LISTEN 10
#define MEMP_NUM_TCP_SEG        160
#define MEMP_NUM_NETBUF         200 
#define MEMP_NUM_NETCONN        200 
#define MEMP_NUM_API_MSG        200
#define MEMP_NUM_TCPIP_MSG      2000

#define MEMP_NUM_SYS_TIMEOUT    20

/* ---------- Pbuf options ---------- */

#define PBUF_POOL_SIZE          1024   // default : 128
#define PBUF_POOL_BUFSIZE       1024

#define PBUF_LINK_HLEN          16

/* ---------- TCP options ---------- */
#define TCP_TTL                 255

/* Controls if TCP should queue segments that arrive out of
   order. Define to 0 if your device is low on memory. */
#define TCP_QUEUE_OOSEQ         1

/* TCP Maximum segment size. */
//#define TCP_MSS                 1514
#define TCP_MSS                 1460

/* TCP sender buffer space (bytes). */
//#define TCP_SND_BUF             20480
#define TCP_SND_BUF             10240

/* TCP sender buffer space (pbufs). This must be at least = 2 *
   TCP_SND_BUF/TCP_MSS for things to work. */
#define TCP_SND_QUEUELEN        2*TCP_SND_BUF/TCP_MSS

/* TCP receive window. */
#define TCP_WND                 20480

/* Maximum number of retransmissions of data segments. */
#define TCP_MAXRTX              12

/* Maximum number of retransmissions of SYN segments. */
#define TCP_SYNMAXRTX           6

/* ---------- ARP options ---------- */
#define ARP_TABLE_SIZE 127

/* ---------- IP options ---------- */
/* Define IP_FORWARD to 1 if you wish to have the ability to forward
   IP packets across network interfaces. If you are going to run lwIP
   on a device with only one network interface, define this to 0. */
#define IP_FORWARD              0

/* If defined to 1, IP options are allowed (but not parsed). If
   defined to 0, all packets with IP options are dropped. */
#define IP_OPTIONS              1

/* ---------- ICMP options ---------- */
#define ICMP_TTL                255


/* ---------- UDP options ---------- */
#define UDP_TTL                 255

/* ---------- Statistics options ---------- */
#define STATS

#define TCP_OUTPUT_DEBUG 1

#ifdef STATS
#define LINK_STATS 1
#define IP_STATS 1 
#define ICMP_STATS 1
#define UDP_STATS 1
#define TCP_STATS 1
#define MEM_STATS 1 
#define MEMP_STATS 1
#define PBUF_STATS 1
#define SYS_STATS 1
#endif /* STATS */

#endif /* __LWIPOPTS_H__ */