Also see the accompanying IPv4 & ICMP Echo Request Calculator.
Note: these tables may not be to scale on your device. For authoritative reference, you should read the relevant RFCs.
|
Version (4 bits) 4 |
IHL (4 bits) 5 |
DoS (8 bits) 00 |
Total Length (16 bits) 00 00 |
|
Identification (16 bits) |
Flags (3 bits) b000 |
Fragment Offset (13 bits) b0000000000000 |
|
|
TTL (8 bits) |
Protocol (8 bits) 11 |
Header Checksum (16 bits) ?? ?? |
|
|
Source Address (32 bits) |
|||
|
Destination Address (32 bits) |
|
Source Port (16 bits) |
Destination Port (16 bits) |
|
UDP Length (16 bits) 00 08 |
Optional Checksum (16 bits) ?? ?? |
|
Payload Data (optional, 0-65507 bytes) "" |