Ethernet

Enumerations
enum	eth_type {   ETHTYPE_IP = 0x0800U, ETHTYPE_ARP = 0x0806U, ETHTYPE_WOL = 0x0842U, ETHTYPE_RARP = 0x8035U,   ETHTYPE_VLAN = 0x8100U, ETHTYPE_IPV6 = 0x86DDU, ETHTYPE_PPPOEDISC = 0x8863U, ETHTYPE_PPPOE = 0x8864U,   ETHTYPE_JUMBO = 0x8870U, ETHTYPE_PROFINET = 0x8892U, ETHTYPE_ETHERCAT = 0x88A4U, ETHTYPE_LLDP = 0x88CCU,   ETHTYPE_SERCOS = 0x88CDU, ETHTYPE_MRP = 0x88E3U, ETHTYPE_PTP = 0x88F7U, ETHTYPE_QINQ = 0x9100U }

Functions
err_t	ethernet_output (struct netif *netif, struct pbuf *p, const struct eth_addr *src, const struct eth_addr *dst, u16_t eth_type)

Detailed Description

Enumeration Type Documentation

eth_type

enum eth_type

A list of often ethtypes (although lwIP does not use all of them):

Enumerator
ETHTYPE_IP	Internet protocol v4
ETHTYPE_ARP	Address resolution protocol
ETHTYPE_WOL	Wake on lan
ETHTYPE_RARP	RARP
ETHTYPE_VLAN	Virtual local area network
ETHTYPE_IPV6	Internet protocol v6
ETHTYPE_PPPOEDISC	PPP Over Ethernet Discovery Stage
ETHTYPE_PPPOE	PPP Over Ethernet Session Stage
ETHTYPE_JUMBO	Jumbo Frames
ETHTYPE_PROFINET	Process field network
ETHTYPE_ETHERCAT	Ethernet for control automation technology
ETHTYPE_LLDP	Link layer discovery protocol
ETHTYPE_SERCOS	Serial real-time communication system
ETHTYPE_MRP	Media redundancy protocol
ETHTYPE_PTP	Precision time protocol
ETHTYPE_QINQ	Q-in-Q, 802.1ad

Function Documentation

ethernet_output()

err_t ethernet_output	(	struct netif *	netif,
		struct pbuf *	p,
		const struct eth_addr *	src,
		const struct eth_addr *	dst,
		u16_t	eth_type
	)

Send an ethernet packet on the network using netif->linkoutput(). The ethernet header is filled in before sending.

See also

LWIP_HOOK_VLAN_SET

Parameters

netif	the lwIP network interface on which to send the packet
p	the packet to send. pbuf layer must be PBUF_LINK.
src	the source MAC address to be copied into the ethernet header
dst	the destination MAC address to be copied into the ethernet header
eth_type	ethernet type (eth_type)

Returns

ERR_OK if the packet was sent, any other err_t on failure