D-Link DGS-3200 SERIES Cli Manual page 442

Table-6: Chunk and packet offset
Offset Offset Offset Offset
Chunk Chunk0 Chunk1 Chunk2
127 3 7
Byte
128 4 8
Byte
1 5 9
Byte
2 6 10
Byte
Offset Offset Offset Offset
Chunk Chunk15 Chunk16 Chunk17
63 67 71
Byte
64 68 72
Byte
65 69 73
Byte
66 70 74
Byte
The following table indicates a completed ARP packet contained in Ethernet frame which is the pattern for the
calculation of packet offset.
Table-7: A completed ARP packet contained in Ethernet frame
Ethernet Header
Destination Source address
address
(6-byte) (6-byte)
01 02 03 04 05 06
DGS-3200 Series Layer 2 Gigabit Managed Switch CLI Manual
Offset Offset Offset Offset
Chunk3 Chunk4 Chunk5 Chunk6
11 15 19 23
12 16 20 24
13 17 21 25
14 18 22 26
Offset Offset Offset Offset
Chunk18 Chunk19 Chunk20 Chunk21
75 79 83 87
76 80 84 88
77 81 85 89
78 82 86 90
Ethernet H/W type Protocol
type type
(2-byte) (2-byte) (2-byte)
0806
Offset Offset Offset Offset
Chunk7 Chunk8 Chunk9 Chunk10
27 31 35
28 32 36
29 33 37
30 34 38
Offset Offset Offset
Chunk22 Chunk23 Chunk24 Chunk25
91 95 99
92 96 100
93 97 101
94 98 102
ARP
H/W Protocol Operation
address address
length length
(1-byte) (1-byte) (2-byte)
442
Offset Offset Offset
Chunk11 Chunk12 Chunk13
39 43 47
40 44 48
41 45 49
42 46 50
Offset Offset Offset Offset
Chunk26 Chunk27 Chunk28
103 107 111 115
104 108 112 116
105 109 113 117
106 110 114 118
Sender Sender protocol
H/W address
address
(6-byte) (4-byte)
0a5a5a5a
(10.90.90.90)
Offset Offset
Chunk14 Chunk15
51 55 59
52 56 60
53 57 61
54 58 62
Offset Offset
Chunk129 Chunk30
119 123
120 124
121 125
122 126
Target Target
H/W protocol
address address
(6-byte) (4-byte)