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TCP/IP Deep Dive
in 5 Days

Understand the protocols that run the internet. OSI model, IP addressing, routing tables, TCP vs UDP, and reading real packets in Wireshark.

5 lessons
Self-paced
~60 min/day
Free forever
No account needed
Start Day 1 — Free → See what's covered
What you'll learn

TCP/IP Deep Dive in 5 Days

From the OSI model to live packet captures — build the foundational networking knowledge every engineer and IT professional needs.

  • Navigate all 7 layers of the OSI model with confidence
  • Design and subnet IPv4 and IPv6 address spaces
  • Understand how routers make forwarding decisions
  • Know when to use TCP vs UDP and why it matters
  • Capture and analyze live network traffic with Wireshark
  • Troubleshoot connectivity issues at the protocol level
7
OSI Layers
IPv4+6
addressing
5
lessons
$0
cost
5-Day Curriculum

Every lesson has a real exercise.
No theory without practice.

01
The OSI Model
All 7 layers explained, what happens at each layer, and why the model matters in practice
OSI layersencapsulationPDUs
→
02
IP Addressing & Subnetting
IPv4 and IPv6, CIDR notation, subnet masks, calculating address ranges
IPv4IPv6CIDRsubnetting
→
03
Routing
How routers work, routing tables, static vs dynamic routing, BGP and OSPF basics
routing tablesBGPOSPF
→
04
TCP vs UDP
Connection setup, reliability guarantees, flow control, when each protocol is the right choice
TCP handshakeUDPflow control
→
05
Wireshark & Packet Analysis
Capture live traffic, filter packets, read protocol headers, diagnose real network issues
Wiresharkpacket capturefilters
→
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Your instructor
B
Bo Peng
Founder, Precision AI Academy

Kaggle Top 200 data scientist. Trained 400+ professionals across universities and federal agencies. Built production systems at scale. This course is practical first — every lesson has working examples and an exercise you can finish in under an hour.

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