#ifndef _LWIPOPTS_H_#define _LWIPOPTS_H_#ifdef LWIP_DEBUG#undef LWIP_DEBUG#endif/* Options that would ordinarily be application configurable we'll make   configurable differently. These are currently set to lwip defaults *//* ---------- Statistics options ---------- *///#define STATS#ifdef STATS#define LINK_STATS#define IP_STATS#define ICMP_STATS#define UDP_STATS#define TCP_STATS#define MEM_STATS#define MEMP_STATS#define PBUF_STATS#define SYS_STATS#endif /* STATS *//* ---------- IP options ---------- *//* Define IP_FORWARD 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, don't define   this. */#define IP_FORWARD              0/* ---------- ICMP options ---------- */#define ICMP_TTL                255/* ---------- UDP options ---------- */#define UDP_TTL                 255/* ---------- TCP options ---------- */#define TCP_TTL                 255#define TCP_QUEUE_OOSEQ         1/* TCP Maximum segment size. */#define TCP_MSS                 512/* TCP sender buffer space (bytes). */#define TCP_SND_BUF             1024/* 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                 4096/* Maximum number of retransmissions. */#define TCP_MAXRTX              12#define TCP_SYNMAXRTX           12/* ---------- Memory options ---------- */#define MEM_ALIGNMENT           1/* Shrunk this down from 160000 -- this should probably be far memory someday */#define MEM_SIZE                12000#define MEM_RECLAIM             1#define MEMP_RECLAIM            1#define MEM_POOLS               1#define MEMP_NUM_PBUF           20#define MEMP_NUM_UDP_PCB        20#define MEMP_NUM_TCP_PCB        20#define MEMP_NUM_TCP_PCB_LISTEN 20#define MEMP_NUM_TCP_PCB_TW     0#define MEMP_NUM_TCP_SEG        20#define MEMP_NUM_NETBUF         20#define MEMP_NUM_NETCONN        20#define MEMP_NUM_API_MSG        20#define MEMP_NUM_TCPIP_MSG      20#define MEMP_NUM_SYS_TIMEOUT    2/* ---------- Pbuf options ---------- */#define PBUF_POOL_SIZE          20#define PBUF_POOL_BUFSIZE       128#define PBUF_LINK_HLEN          16#define ARP_TABLE_SIZE          20/* Turn on DHCP protocol special processing */#define LWIP_DHCP 0#endif /*  *_LWIOPTS_H_ */