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arphdr Struct Reference

ARP packet header structure. More...

Data Fields
u_short	ar_hrd
	Format of hardware address.
u_short	ar_pro
	Format of protocol address.
u_char	ar_hln
	Length of hardware address.
u_char	ar_pln
	Length of protocol address.
u_short	ar_op
	ARP operation.

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Detailed Description

ARP packet header structure.

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Field Documentation

u_short arphdr::ar_hrd

Format of hardware address. Nut/Net supports ARPHRD_ETHER only.

u_short arphdr::ar_op

ARP operation. May be either ARPOP_REQUEST or ARPOP_REPLY.

u_short arphdr::ar_pro

Format of protocol address. Only ETHERTYPE_IP is supported by Nut/Net.

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