[STD37]    Internet Standard 37,
              <https://www.rfc-editor.org/info/std37>.
              At the time of writing, this STD comprises the following:

              Plummer, D., "An Ethernet Address Resolution Protocol: Or
              Converting Network Protocol Addresses to 48.bit Ethernet
              Address for Transmission on Ethernet Hardware", STD 37,
              RFC 826, DOI 10.17487/RFC0826, November 1982,
              <https://www.rfc-editor.org/info/rfc826>.