Todd Lammle

Wiley Expert

Todd Lammle

Todd Lammle is the best known Cisco certification author of the last 30 years, with over 100 books including the bestselling CCNA study guides published with Sybex, and more than 4 decades of hands-on experience across enterprise networks, wireless and security. He is Cisco certified across every certification category, runs his own training and consulting firms, and continues to teach advanced Cisco security including Firepower and FTD through live classes.

5 Courses by Todd Lammle

Cover image for CCNA Certification Study Guide

CCNA Certification Study Guide

Exam 200-301, Volume 2

Get ready for the CCNA 200-301 exam by building a strong foundation in networking. You'll work through practical configurations and troubleshooting scenarios that reflect real-world environments. The focus is on helping you understand network fundamentals, routing, security, and advanced topics like IPv6 and VPNs.

Wiley | 2026 | 896 min

Cover image for CCNA Certification Study Guide Volume 1

CCNA Certification Study Guide Volume 1

Exam 200-301 v1.1

Get a solid understanding of networking essentials, routing, subnetting, and device management while preparing for the CCNA 200-301 exam. Build practical skills through hands-on labs and real-world scenarios designed to help you confidently manage Cisco networks.

Wiley | 2025 | 672 min

Cover image for CCNA Certification Study Guide Volume 2

CCNA Certification Study Guide Volume 2

Exam 200-301 v1.1

Get ready to tackle the CCNA 200-301 exam by building practical networking skills. Explore key topics like IPv6, NAT, network security, and wireless technologies. Gain real-world experience through hands-on labs and targeted review questions to reinforce your understanding.

Wiley | 2025 | 688 min

Cover image for CompTIA Network+ Study Guide

CompTIA Network+ Study Guide

Exam N10-009

Get ready for the CompTIA Network+ N10-009 exam by building a strong foundation in networking. You'll explore key topics like network design, security, routing, and troubleshooting, all with a focus on practical skills. Interactive tools and real-world examples help reinforce your understanding as you prepare for certification.

Wiley | 2026 | 1024 min

Cover image for Understanding Cisco Networking Technologies, Volume 1

Understanding Cisco Networking Technologies, Volume 1

Exam 200-301

Gain a solid understanding of Cisco networking by exploring core concepts like Ethernet, IP addressing, and routing. Build practical skills in configuring and troubleshooting Cisco devices, preparing you for real-world networking challenges and the Cisco 200-301 exam.

Wiley | 2025 | 400 min