create arp-packet
ff c, ff c, ff c, ff c, ff c, ff c, 00 c, 04 c,
76 c, 51 c, 8e c, 29 c, 08 c, 06 c, 00 c, 01 c,
08 c, 00 c, 06 c, 04 c, 00 c, 01 c, 00 c, 04 c,
76 c, 51 c, 8e c, 29 c, c0 c, a8 c, c5 c, 8a c,
00 c, 00 c, 00 c, 00 c, 00 c, 00 c, c0 c, a8 c,
c5 c, fa c, 00 c, 00 c, 00 c, 00 c, 00 c, 00 c,
00 c, 00 c, 00 c, 00 c, 00 c, 00 c, 00 c, 00 c,
00 c, 00 c, 00 c, 00 c, e8 c, d4 c, 7f c, a4