Configuring Port Redirection

CompTIA Network + Domain:

Domain 1: Networking Concepts
Domain 5: Network Troubleshooting and Tools

CompTIA Network + Objective:

Objective 1.1: Explain the purposes and uses of ports and protocols.
Objective 5.2: Given a scenario, use the appropriate tool.
Objective 5.4: Given a scenario, troubleshoot common network service issues.

Overview

In this lab, you will be testing the firewall from the external network or WAN (wide area network), testing connectivity with ping, and configuring port redirection on pfSense. Configuring port redirection is the process of redirecting a port on the firewall from one network to another port on the internal network. You will be using a pcap file in Wireshark to explore the network traffic that was already captured.

outcomes:

In this lab, you will learn to:

  1. Test a firewall from an external network.
  2. Allow ICMP/ping in a firewall.
  3. Configure port redirection on a firewall.
Courses

Key terms and descriptions

firewall
A firewall can block traffic or redirect traffic to hosts on the internal network. pfSense is an open source firewall that uses a BSD-based firewall.
SSH
Secure shell uses port 22 and encrypts traffic, which typically provides a terminal interface.
nmap
an open source and free scanner that allows you to determine open ports on a remote host
zenmap
a GUI port scanner that is a front end for the free and open source Nmap scanner
ping
an operating system utility that allows you to test for TCP/IP connectivity between hosts