PING (Echo/Echo Reply)
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
Type(8 or 0)
Code(0)
Checksum
Identifier
Sequence Number
Data...