After Red Hat Enterprise Linux 8.2 is installed, configure the network. For our solution deployment, we configured static IPv4 addresses for all the hosts. 

Note: If you have DHCP set up in your environment, you can omit these steps as DHCP automatically configures dynamic IP addresses for all the hosts when the installation is completed. 

1. List all the interfaces on the system and identify the interface to be modified by using the ip addr command, as shown in the following example:

Figure 12. List of interfaces

2. Change the IP address of the enp1s0 interface using a direct nmcli command:

sudo nmcli connection modify enp1s0 IPv4.address 192.168.122.66/24

where 192.168.122.66 is the IP address and /24 is the routing prefix in Classes Inter-Domain Routing (CIDR) notation.

3. Change the gateway and DNS settings:

sudo nmcli connection modify enp1s0 IPv4.gateway 192.168.122.1

sudo nmcli connection modify enp1s0 IPv4.dns 192.168.122.1

4. Set the method to manual to avoid using another boot protocol for the interface: 

sudo nmcli connection modify enp1s0 IPv4.method manual

This command sets the BOOTPROTO option to none in the interface configuration file.