Tech Journal Assignment 3 - Isaiah-River/NET-330-01-Network-Design GitHub Wiki

Lab 5-1 Static NAT

Setting NAT interfaces

Commands for static NAT with example

Lab 5-2 NAT PAT

Commands to configure PAT with an explanation so you can do it in the future!

Using Simulation Mode and protocol filters in Packet Tracer

1. Accessing Simulation Mode:

Packet Tracer offers two main modes:

Real-time Mode: Default mode where devices function in real-time.

Simulation Mode: Slows down the process and allows you to monitor network activities, such as packet movement and protocol operations. To enter Simulation Mode:

In the Packet Tracer toolbar, locate the "Simulation" tab (next to "Real-time"). Click the "Simulation" tab to switch to this mode. This can also be done with the shortcut Shift+S.

2. Using Simulation Mode:

Once in Simulation Mode, you can visualize network traffic and interaction between devices by observing how packets are created, transferred, and processed.

Start Simulation: Click Auto Capture/Play to begin the simulation. You will see packets move between devices step by step. Control the Speed: Use the Play Controls to adjust the simulation speed or step through each event manually with the Forward and Backward buttons.

3. Protocol Filters:

Packet Tracer allows you to focus on specific protocols by filtering out irrelevant ones.

Setting Protocol Filters:

In Simulation Mode, click the Show/Hide Event List Filters button located on the right side of the interface. You will see a list of available protocols (e.g., TCP, HTTP, ICMP, DNS, etc.).

Enable/Disable Protocols: To focus on a specific protocol, uncheck the protocols you don’t want to see. For example, to only observe ICMP packets (such as pings), uncheck all other protocols except ICMP. This feature is useful for understanding the behavior of specific network protocols without being overwhelmed by other traffic.

4. Monitoring Network Events:

In Simulation Mode, Packet Tracer shows a list of events under the Event List pane:

Each event corresponds to a packet being sent, received, or processed by devices in the network. The details include the source and destination, the protocol used, and the time.

5. Viewing Packet Details:

To analyze a specific packet:

Click on the event in the Event List. Click Edit Filters to open the packet details. You can see the layers (OSI model) involved and inspect headers, addressing, and payloads.

6. Resetting Simulation:

After completing your observations, you can reset the simulation:

Click the Reset Simulation button to clear events and restart packet capturing.