IPv6 Hex Decoder

IPv6 expands address space and introduces streamlined header processing. Understanding fixed header fields helps with migration and dual-stack diagnostics.

Decode IPv6 Data

Paste HEX string

If this decoder does not work, use the Contact email link in the footer.

Raw Decode Output

Decode a packet to view raw output.

Decoded Fields

Payload Hex: N/A

Payload ASCII: N/A

Additional Insights

No insights yet. Decode a packet to view layered interpretation.

No decoded fields yet. Decode a full frame to see Ethernet/IP/TCP details.

About IPv6

IPv6 is the next-generation internet protocol with a simplified fixed header and a much larger address space. Core header fields describe traffic class, flow identity, and forwarding behavior.

IPv6 expands address space and introduces streamlined header processing. Understanding fixed header fields helps with migration and dual-stack diagnostics.

IPv6 Header Structure

Version + Traffic Class + Flow Label: version, QoS marking, and flow context.
Payload Length + Next Header + Hop Limit: payload size, next protocol, and hop budget.
Source Address (16 bytes): sender IPv6 address.
Destination Address (16 bytes): receiver IPv6 address.

Why Decode IPv6 Packets

Decode IPv6 packet fields from hex, including flow label, hop limit, and next header.