# lwipopts.h File Reference

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## Defines

#define | MEM_ALIGNMENT 2
#define | MEM_SIZE 1000
#define | MEMP_NUM_PBUF 8
#define | MEMP_NUM_UDP_PCB 4
#define | MEMP_NUM_TCP_PCB 5
#define | MEMP_NUM_TCP_PCB_LISTEN 8
#define | MEMP_NUM_TCP_SEG 8
#define | MEMP_NUM_SYS_TIMEOUT 3
#define | MEMP_NUM_NETBUF 2
#define | MEMP_NUM_NETCONN 4
#define | MEMP_NUM_API_MSG 8
#define | MEMP_NUM_TCPIP_MSG 8
#define | MEM_RECLAIM 1
#define | MEMP_RECLAIM 1
#define | PBUF_POOL_SIZE 6
#define | PBUF_POOL_BUFSIZE 128
#define | PBUF_LINK_HLEN 16
#define | LWIP_TCP 1
#define | TCP_TTL 255
#define | TCP_QUEUE_OOSEQ 1
#define | TCP_MSS 128
#define | TCP_SND_BUF 256
#define | TCP_SND_QUEUELEN 4 * TCP_SND_BUF/TCP_MSS
#define | TCP_WND 1024
#define | TCP_MAXRTX 12
#define | TCP_SYNMAXRTX 4
#define | ARP_TABLE_SIZE 10
#define | IP_FORWARD 1
#define | IP_OPTIONS 1
#define | ICMP_TTL 255
#define | LWIP_DHCP 0
#define | DHCP_DOES_ARP_CHECK 1
#define | LWIP_UDP 1
#define | UDP_TTL 255
#define | 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

## Define Documentation

#define ARP_TABLE_SIZE 10

#define DHCP_DOES_ARP_CHECK 1

#define ICMP_STATS

#define ICMP_TTL 255

#define IP_FORWARD 1

#define IP_OPTIONS 1

#define IP_STATS

#define LINK_STATS

#define LWIP_DHCP 0

#define LWIP_TCP 1

#define LWIP_UDP 1

#define MEM_ALIGNMENT 2

#define MEM_RECLAIM 1

#define MEM_SIZE 1000

#define MEM_STATS

#define MEMP_NUM_API_MSG 8

#define MEMP_NUM_NETBUF 2

#define MEMP_NUM_NETCONN 4

#define MEMP_NUM_PBUF 8

#define MEMP_NUM_SYS_TIMEOUT 3

#define MEMP_NUM_TCP_PCB 5

#define MEMP_NUM_TCP_PCB_LISTEN 8

#define MEMP_NUM_TCP_SEG 8

#define MEMP_NUM_TCPIP_MSG 8

#define MEMP_NUM_UDP_PCB 4

#define MEMP_RECLAIM 1

#define MEMP_STATS

#define PBUF_LINK_HLEN 16

#define PBUF_POOL_BUFSIZE 128

#define PBUF_POOL_SIZE 6

#define PBUF_STATS

#define STATS

#define SYS_STATS

#define TCP_MAXRTX 12

#define TCP_MSS 128

#define TCP_QUEUE_OOSEQ 1

#define TCP_SND_BUF 256

#define TCP_SND_QUEUELEN 4 * TCP_SND_BUF/TCP_MSS

#define TCP_STATS

#define TCP_SYNMAXRTX 4

#define TCP_TTL 255

#define TCP_WND 1024

#define UDP_STATS

#define UDP_TTL 255