The OpenWrt Project is a Linux operating system targeting embedded devices. Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to customize the device through the use of packages to suit any application.
I had a old post regarding how to install OpenWRT into VMWare.
For me, OpenWRT is a perfect solution to run in my virtual environment. It can be ran as a light weight router to connect two different networks simulating two offices.
It also can act as an Firewall to filter the traffic crossing OpenWRT. It took a little resources fro your CPU, Memory and Hard Drive.
There are lots of situations when I created my lab, I will need only a small device acting as an router. All traffic has to be passed but two networks are having completely two different network addresses.
1 Interfaces configuration
LAN interface has an ip : 192.168.196.2/24.
The firewall rule details show in the following screenshot:
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January 01, 2021 at 10:56PM Network