schedule

Reset Schedule: 00:00 & 12:00 (GMT+7) Daily

build

Payload Builder

Build and analyze network protocol packets for server testing and development

Protocol Payload Constructor

Build and understand network protocol packets for educational learning.

Learning Resources

school

Understanding Network Packets

Learn the fundamental structure of network packets and how different protocols organize data for transmission.

  • • Packet header structures
  • • Protocol layering principles
  • • Data encapsulation concepts
  • • Network addressing schemes
security

Security Implications

Understand how packet construction relates to network security and potential vulnerabilities.

  • • Packet injection techniques
  • • Protocol exploitation risks
  • • Defensive strategies
  • • Ethical considerations

Protocol Examples

HTTP Request Example

GET / HTTP/1.1
Host: example.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64)
Accept: text/html,application/xhtml+xml
Connection: keep-alive

[Optional Request Body]

TCP Packet Structure

Source Port:     12345
Destination Port: 80
Sequence Number: 1000
Acknowledgment: 0
Flags: SYN=1, ACK=0
Window Size: 64240
Checksum: [calculated]
Urgent Pointer: 0