See wikipedia for details.

Ethernet Frame
Preamble	Start of Frame delimiter	Destination MAC	Source MAC	802.1Q tag	Ethertype or length	IPv4 packet Version IHL DSCP ENC Total Length Identification Flags Fragment Offset Time To Live TTL Protocol Header Checksum Source IP Destination IP Options TCP Segment Frame UDP packet ICMP packet Bits 0-3 Bits 4-7 Bits 8-13 Bits 14-15 Bits 16-31 Bits 32-47 Bits 48-50 Bits 51-63 Bits 64-71 Bits 72-79 Bits 80-95 Bits 96-127 Bits 128-159 Bits 160-191 16-1484 Bytes IPv6 Packet Version Traffic Class Flow Label Payload Length Next Header Additional Headers Stored in Payload Hop Limit Source IP Destination IP Additional Headers TCP frame UDP packet ICMP packet 40 Octets 8-1460 bytes	Frame Check CRC	Interframe Gap
7 octets	1 octets	6 octets	6 octets	4 octets	2 octets	42-1500 octets 65535 octets - Jumbo frame	4 octets	12 octets

TCP Segment Frame
Source Port	Destination Port	Sequence Number	Ack number	Data Offset	Reserved	Frame Flags	Window Size	Checksum	Urgent Pointer	Options	Payload
Bits 0-15	Bits 16-31	Bits 32-63	Bits 64-31	Bits 96-99	Bits 100-102	Bits 103-111	Bits 112-127	Bits 128-143	Bits 144-159	Bits 160-195	16-1468 Bytes

UDP packet
Source Port	Destination Port	Length	Checksum	Data
16 bit	16 bit	16 bit	16 bit	0-65507 bytes

ICMP packet
Type	Code	Checksum	Rest of Header	[IP header and 1st 8-bytes of IP packet that triggered error
8 bit	8 bit	16 bit	32 bit	0-x bytes