IPv4 Protocol Visualizer

Internet Protocol version 4 (IPv4) is the fourth version of the Internet Protocol, providing addressing and routing for network packets. Analyze IPv4 headers, fragmentation, TTL, and protocol fields.

Specification: RFC 791
Protocol:
Try these examples to get started:

Ready to Parse IPv4

Select an example above or enter your own hex data to get started

Choose an Example
Click one of the example chips above to auto-fill hex data
Or Paste Your Own
Paste hex packet data directly into the input field
Click Parse
Hit the Parse button to see the field breakdown
Learn IPv4 FormatView Example Page

AI interpretation

Parsed by ByteLens

Use the current parsed packet as trusted context, then ask AI for interpretation.

Byte Grid

No data to display. Enter hex data and click Parse.

Parsed Fields

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Protocol Configuration

About IPv4 Protocol

Internet Protocol version 4 (IPv4) is the fourth version of the Internet Protocol, providing addressing and routing for network packets. Analyze IPv4 headers, fragmentation, TTL, and protocol fields.

Protocol Fields

  • Version: IP version (always 4 for IPv4)
  • IHL: Internet Header Length in 32-bit words (minimum 5)
  • DSCP: Differentiated Services Code Point (QoS)
  • ECN: Explicit Congestion Notification
  • Total Length: Total length of IP packet in bytes (header + data)
  • Identification: Unique identifier for fragmentation reassembly
  • Flags: Control flags (Reserved, DF, MF)
  • Fragment Offset: Position of fragment in original datagram (in 8-byte blocks)
  • TTL: Time To Live (hop limit)
  • Protocol: Protocol used in data portion
  • Header Checksum: Checksum of IP header only
  • Source IP: Source IP address
  • Destination IP: Destination IP address

How to Use This Tool

  1. Enter hexadecimal packet data in the input field above
  2. Click "Parse" to visualize the IPv4 packet structure
  3. Hover over bytes in the grid to see field mappings
  4. Review parsed fields in the detailed breakdown panel
  5. Export data in JSON, CSV, or binary format if needed