Johannes Weber
Johannes is a dedicated network security consultant at SVA System Vertrieb Alexander GmbH in Germany, with a master's degree in IT Security, specializing in IPv6 Security. He excels in implementing next-gen firewalls, DNS appliances, and IPv6 connectivity at customer sites. As a trainer, Johannes conducts classes on IPv6 and DNS, focusing on technical deep dives and security features. His insights and tutorials on IPv6, VPNs, DNSSEC, NTP, Wireshark, and enterprise-grade firewalls (Palo Alto Networks, Fortinet) can be found on his blog, https://netsec.blog/.
Sessions
Effective troubleshooting of network issues is a critical concern for network technicians. While many are familiar with basic ICMP tools like ping and traceroute, the breadth of ICMP capabilities often goes underutilized. This session delves into ICMP messages, specifically the 'Destination Unreachable' type, and the insights they provide into network errors.
We will explore methods for capturing and analyzing network traffic, highlighting practical tips and tricks for using Wireshark to diagnose and resolve issues efficiently. Attendees will gain a deeper understanding of ICMP message functions and how to leverage them for improved network troubleshooting.