Network and Security Basics Wiki ‐ Part 2 - itnett/FTD02H-N GitHub Wiki

Here’s the next section in the GitHub Markdown Wiki format, continuing from where the previous content left off:

📚 Network and Security Basics Wiki - Part 2

📑 Innholdsfortegnelse

  1. 💡 Stateful vs. Stateless Inspection
  2. 🔍 IDS vs. IPS Systems
  3. 🌍 Network Address Translation (NAT)
  4. 🔄 Static vs. Dynamic IP Address Translation
  5. 🔗 How Ethernet Networks Work
  6. 📶 Layer 2 vs. Layer 3 Addressing Schemes
  7. ⚠️ Collision vs. Broadcast Domains
  8. 🚦 Ways to Segment Broadcast Domains
  9. 🖧 Various Network Devices
  10. 🆔 IP Address vs. MAC Address
  11. 📡 How Broadcast Domains Are Used
  12. 🔗 How ARP Tables Are Used
  13. 🗺️ Use of Routing Tables in Network Routing

🔗 How ARP Tables Are Used

  • ARP (Address Resolution Protocol) Tables: These tables map IP addresses to MAC addresses. When a device needs to communicate with another device on the same local network, it uses the ARP table to find out the MAC address corresponding to the target IP address.

📝 Oppsummering:

  • ARP requests are broadcast to all devices in the network segment.
  • ARP replies are sent back by the device with the corresponding IP address.
  • The mapping of IP addresses to MAC addresses is then stored in the ARP table.

⚠️ Viktige Tips:

  • Regularly clear ARP tables to remove outdated mappings.
  • Use Dynamic ARP Inspection (DAI) to prevent ARP spoofing attacks.

Key Words: ARP, MAC Address, IP Address, Mapping, Broadcast.

🗺️ Use of Routing Tables in Network Routing

  • Routing Tables: Used by routers to determine the most efficient path for forwarding packets to their destination. The routing table contains a list of destination networks, possible routes, and their associated costs.

📝 Oppsummering:

  • Routers use routing algorithms like RIP, OSPF, or BGP to populate and update routing tables.
  • Static routes are manually configured; dynamic routes are automatically updated based on network conditions.

⚠️ Viktige Tips:

  • Regularly monitor and optimize routing tables for efficient network performance.
  • Use redundant routes to ensure high availability in case of link failures.

Key Words: Routing Table, Router, Path, Static Route, Dynamic Route, OSPF, BGP.

🧠 Test Forståelse

🔍 Remembering

  • What is the purpose of an ARP table?
  • Define a routing table and its role in networking.

🤔 Understanding

  • Explain how ARP helps devices communicate on a local network.
  • Describe the difference between a static route and a dynamic route.

📝 Applying

  • Illustrate how a router uses a routing table to forward packets between networks.
  • Demonstrate the steps involved in an ARP request and reply process.

🔍 Analyzing

  • Compare the efficiency of static vs. dynamic routing in a large network.

🛠️ Evaluating

  • Assess the impact of a corrupted ARP table on network communication.
  • Evaluate the use of dynamic routing protocols in a rapidly changing network environment.

💡 Creating

  • Create a network topology that uses both static and dynamic routes to balance performance and reliability.
  • Develop a security strategy that includes measures to protect against ARP spoofing attacks.

🏷️ Nøkkelord

  • ARP, MAC Address, IP Address, Routing Table, Static Route, Dynamic Route, OSPF, BGP, ARP Spoofing, Dynamic ARP Inspection (DAI).

Feel free to continue exploring and testing your understanding of these networking fundamentals! 📘