FPGA study notes
FPGA implements Gigabit Ethernet _ARP protocol
ARP protocol
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Address resolution protocol, address resolution protocol, is a TCP/IP protocol that obtains physical addresses based on IP addresses.
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Function:
get the MAC address through the IP address -
Principle:
Source host: send an ARP request, ask what is the MAC address of the host whose IP address is xxx.xxx.xx (such as: 192.168.0.1)? And broadcast the request to the local network segment (the MAC address of the Ethernet frame header is filled with FF; FF; FF; FF; FF; FF means broadcast).
Destination host: Receive the broadcast ARP request, confirm that the IP address matches the machine, send an ARP response packet to the source host, and fill in its own hardware address in the response packet. -
ARP protocol frame format and meaning
---- The content comes from the summary of Xiaomei Ge FPGA self-study notes^^
[Note]: Personal study notes, if there are any mistakes, please feel free to enlighten me. This is polite~~~