How to Learn Network Security for CEH Certification?

Introduction

The Network Security portion in CEH v12 and v13 collectively carries almost 40% weightage in both theory and practical exams. Questions on scanning, enumeration, sniffing, session hijacking, DoS, firewall evasion, wireless attacks, and packet analysis appear in every single paper. Students who master this module consistently score 90%+ because most answers are tool-based and practical-oriented. At Ethical Hacking Training Institute we dedicate more than 100 lab hours exclusively to network attacks so every student can perform Nmap scans, ARP poisoning, SYN floods, and wireless cracking flawlessly — exactly what recruiters and interviewers expect from a certified ethical hacker.

Core Network Security Topics You Must Master for CEH Exam

• TCP/IP, OSI model, subnetting, and packet structure
• Host discovery, port scanning, service version detection
• SMB, SNMP, LDAP, DNS, SMTP enumeration
• Active & passive sniffing, ARP/DNS spoofing, MITM attacks
• SYN flood, UDP flood, Slowloris, reflection attacks
• Firewall/IDS evasion using fragmentation, decoys, source routing
• WEP/WPA/WPA2/WPA3 cracking, evil twin, WPS attacks

Most Important Ports & Services for CEH Exam (Memorise This Table)

60-Day Practical Learning Plan for Network Security Module

Week 1–2 → Complete TCP/IP theory + subnetting + Wireshark basics (our institute provides 50+ PCAP files)
Week 3–4 → Nmap mastery (100+ scan types + 50 NSE scripts daily practice)
Week 5 → Sniffing + MITM with Bettercap (live credential harvesting labs)
Week 6 → DoS attacks using hping3 + Slowloris (real-time impact analysis)
Week 7 → Firewall & IDS evasion techniques + wireless cracking
Week 8 → Full network pentest chaining + report writing
Every day you get new live targets in our 24×7 cloud network range.

Must-Know Tools for Network Security in CEH

• Nmap – scanning & vulnerability scripts
• Wireshark & tcpdump – deep packet inspection
• Bettercap – modern ARP/DNS spoofing & SSL stripping
• hping3 – custom packet crafting & DoS
• Netcat/Socat – Swiss army knife for networking
• Masscan – ultra-fast port scanning
• Nessus/OpenVAS – automated vulnerability scanning

Wireless & VPN Security – New High-Weightage Topics

CEH v13 introduced detailed wireless and VPN security coverage. You must know WEP/WPA/WPA2-PSK cracking using aircrack-ng suite, evil twin attacks, KRACK, PMKID capture, and WPS PIN brute-forcing. VPN topics include split tunneling flaws, protocol weaknesses in PPTP, L2TP, and OpenVPN misconfigurations. Our labs contain 15+ real Wi-Fi routers and enterprise VPN setups for daily practice.

Exam & Practical Tips from 5000+ Successful Students

• 40–45 theory questions come from network module
• 6–8 practical flags from Nmap, SMB, sniffing, DoS
• Always use --reason flag in Nmap for accurate answers
• Know exact commands for SYN, Xmas, UDP scans
• Practice at least 100 PCAP analysis questions

Conclusion

Network security is the module that separates average CEH holders from top performers. With daily hands-on practice on real routers, switches, firewalls, and wireless APs, you will not only clear CEH with 90%+ marks but also become immediately employable. Join Ethical Hacking Training Institute’s running CEH batch (weekend or weekday) and get unlimited access to our massive network lab, live doubt clearing, and 100% placement support. Seats are limited — book your free demo class today!

Frequently Asked Questions

How many questions come from network security?

35–45 questions (almost 40% of total paper).

Is networking knowledge compulsory?

Yes. We teach everything from scratch in first 2 weeks.

Which tool appears most in exam?

Nmap — every single paper and practical.

Is wireless security heavily tested?

Yes — 8–10 questions + practical flags.

Can I practice without physical lab?

Yes. Our cloud lab works on mobile & 2GB RAM laptops.

Is sniffing practical tested?

Yes, 2–4 flags from MITM & credential capture.

Do you teach firewall evasion?

Yes — fragmentation, decoys, MTU tricks, source routing.

Is packet crafting in syllabus?

Yes — hping3 and Scapy commands mandatory.

Weekend batch available?

Yes — live every Saturday-Sunday with full labs.

How to start preparation today?

Book free demo — start scanning real networks this week!

Will I get job after network module?

Yes — SOC analyst, network security engineer roles waiting.

Is VPN security new in v13?

Yes — we cover PPTP, L2TP, OpenVPN, IPsec flaws.

Do you provide notes & recordings?

Yes — 200+ page network module notes + full video access.

Is lab access 24×7?

Yes — unlimited cloud network range for all students.

How to enrol right now?

Call/WhatsApp or visit website — batch starting this weekend!