Address Resolution Protocol (ARP) is essential for computer communication across the network. This course provides the in-depth knowledge needed to understand, improve, troubleshoot, and secure ARP-related communications in your network.

DHCP is one of the core protocols that makes the network "just work". This course will delve into the specifics of the protocol including configuration, vendor-specific options and extensions, and troubleshooting the network when things go wrong.

Billions of number sets are impossible to remember, that's why DNS is critical to internal networks and the Internet. This course will teach you how DNS works from configuration to security. Packets will be analyzed with Wireshark at every step.

In this course, you will gain a greater depth of EIGRP knowledge to help ensure your ability to configure and troubleshoot EIGRP in real environments.

Transferring files within a business is a critical capability that has become a basic operating necessity. This course explores both FTP active and passive modes, plus FTPS, SFTP, TFTP, all of which can operate using IPv4 and IPv6.

Cut through today's hype surrounding fancy troubleshooting tools and achieve brilliance in the basics with this ICMP deep dive. You'll master using ICMP for network administration in both IPv4 and IPv6 environments.

Many engineers struggle with IP multicast. This IGMP and MLD deep dive builds a strong foundation into host-to-router multicast signaling. It includes extensive demonstrations, packet capture deep-dives, and troubleshooting techniques.

IPsec helps us to secure our infrastructure and offer services securely to our organization. This course will teach you how to configure, verify, and analyze IPsec, as well as teach you knowledge to give you a deep understanding of the technologies.

This course will introduce the principles of setting up NAT on your network layer device and of understanding the potential security risks and rewards of using network address translation.

This course is focused on providing you with a greater depth of OSPF knowledge to help ensure your ability to configure and troubleshoot it in real environments.

QUIC is already the transport protocol for Google, Facebook, YouTube, UBER, and many more. This course will teach you to test, validate, and troubleshoot this rapidly emerging transport protocol.

If you're responsible for managing your network you'll need to know SNMP. This course will teach you the basics of SNMP, how to configure it on common network equipment, and building a monitoring system to assist with troubleshooting.