A.113.10.4.0 B.186.54.3.0 C.175.33.3.255 D.26.35.2.255 E.17.35.36.0
A.RARP request B.Show Network Address request C.Proxy ARP request D.ARP request E.Show Hardware Address request
A.FTP B.TFTP C.TCP D.UDP E.SCP