Here is a list of all documented functions, variables, defines, enums, and typedefs with links to the documentation:

ipARP_TIMER_PERIOD_MS : FreeRTOS_IP.c
ipconfigDNS_REQUEST_ATTEMPTS : FreeRTOS_DNS.c
ipconfigMAX_IP_TASK_SLEEP_TIME : FreeRTOS_IP.c
ipconfigTCP_ACK_EARLIER_PACKET : FreeRTOS_TCP_IP.c
ipCONSIDER_FRAME_FOR_PROCESSING : FreeRTOS_IP.c
ipCORRECT_CRC : FreeRTOS_IP.c
ipDECL_CAST_CONST_PTR_FUNC_FOR_TYPE() : FreeRTOS_DHCP.c, FreeRTOS_DNS.c
ipDECL_CAST_PTR_FUNC_FOR_TYPE() : FreeRTOS_DNS.c, FreeRTOS_TCP_WIN.c, FreeRTOS_Sockets.c, FreeRTOS_IP.c, FreeRTOS_DNS.c, FreeRTOS_DHCP.c
ipEXPECTED_ARPHeader_t_SIZE : FreeRTOS_IP.c
ipEXPECTED_EthernetHeader_t_SIZE : FreeRTOS_IP.c
ipEXPECTED_ICMPHeader_t_SIZE : FreeRTOS_IP.c
ipEXPECTED_IGMPHeader_t_SIZE : FreeRTOS_IP.c
ipEXPECTED_IPHeader_t_SIZE : FreeRTOS_IP.c
ipEXPECTED_TCPHeader_t_SIZE : FreeRTOS_IP.c
ipEXPECTED_UDPHeader_t_SIZE : FreeRTOS_IP.c
ipFIRST_MULTI_CAST_IPv4 : FreeRTOS_IP.c
ipFRAGMENT_OFFSET_BIT_MASK : FreeRTOS_IP.c
ipICMP_ECHO_REPLY : FreeRTOS_IP.c
ipICMP_ECHO_REQUEST : FreeRTOS_IP.c
ipINITIALISATION_RETRY_DELAY : FreeRTOS_IP.c
ipINVALID_LENGTH : FreeRTOS_IP.c
ipIP_VERSION_AND_HEADER_LENGTH_BYTE : FreeRTOS_UDP_IP.c
ipIPV4_VERSION_HEADER_LENGTH_MAX : FreeRTOS_IP.c
ipIPV4_VERSION_HEADER_LENGTH_MIN : FreeRTOS_IP.c
ipLAST_MULTI_CAST_IPv4 : FreeRTOS_IP.c
ipTCP_TIMER_PERIOD_MS : FreeRTOS_IP.c, FreeRTOS_Sockets.c
iptraceIP_TASK_STARTING : FreeRTOS_IP.c
ipUNHANDLED_PROTOCOL : FreeRTOS_IP.c
ipWRONG_CRC : FreeRTOS_IP.c