ICMP

Overview

Macros
#define	LWIP_ICMP   1
#define	ICMP_TTL   IP_DEFAULT_TTL
#define	LWIP_BROADCAST_PING   0
#define	LWIP_MULTICAST_PING   0

Macro Definition Documentation

#define LWIP_ICMP   1

LWIP_ICMP==1: Enable ICMP module inside the IP stack. Be careful, disable that make your product non-compliant to RFC1122

#define ICMP_TTL   IP_DEFAULT_TTL

ICMP_TTL: Default value for Time-To-Live used by ICMP packets.

#define LWIP_BROADCAST_PING   0

LWIP_BROADCAST_PING==1: respond to broadcast pings (default is unicast only)

#define LWIP_MULTICAST_PING   0

LWIP_MULTICAST_PING==1: respond to multicast pings (default is unicast only)