IPv6 Packet Header
IPv6 Header
320 bits in total (40 bytes)
- Version: 4 bits
- Always 6 (0110)
- Traffic class: 6+2 bits
- QoS Markings
- Flow Label: 20 bits
- Used to identify specific traffic flow
- Payload length: 16 bits
- Length of the encapsulated Layer 4 segment
- Next Header: 8 bits
- Indicates the encapsulated Layer 4 protocol
- Hop Limit: 8 bits
- Functions like the IPv4 TTL field
- Source Address: 128 bits
- Destination address: 128 bits
Source: IPv6 packet - Wikipedia