S2E1 - Outline of S2

title: S2E1 - Outline of S2

author: Nicholas Morrison nick@nanocat.net

draft: false

tags: [network, workshop, arista]

categories: [workshop]

noindex: true

About Me

choose your level of interaction based on your energy - camera off / muted is totally OK
if you are usually quiet in workshops, please feel free to take up space here
if you are usually confident in workshops, please consider making space for others
interactive “lectures” about a particular topic
prepared lab tasks
- build a network to a spec
- troubleshoot a pre-built network
learning networking isn’t linear - we will sometimes venture into uncharted territory, and then come back to talk about what we discovered.
tech stack:
- containerlab - orchestration tool
- containerlab discord: https://discord.gg/fbcMCrQ4
- hetzner - linux VMs
- diagrams.net - diagrams

if you have no income, please don’t pay anything
if you have an income, please help me to cover costs
- there is a donation link at the top of the workshops page that looks like this -> 💜 donate 🙏
if your company will help cover your cost, I can send you a formal invoice (I am an Einzelunternehmer with a VAT ID)

Layer 2 and Layer 3
- tcpdump
- MAC addresses and IP addresses (IPv4 and IPv6)
- Packet formats, headers, shims
TCP vs UDP
- Connection-based vs Connectionless
- the Three-Way Handshake
- TCP windowing for flow control
Firewalls and Access Control Lists (ACLs)
- block ur friends
- ufw vs iptables vs Appliances
- faking your source IP
Networking in Linux
- the ip command
- network namespaces
- docker
Network Programming
- writing your own network utilities
Encapsulation
- VPNs and Tunneling
- Onion Ring
- GRE, IPSec, SSH tunnels

Please enjoy :-)