The next screen is the Configure Network Interface screen. It is very important to configure at least one network interface in order to have Elastix working properly.
On this screen, all the Ethernet or network interface cards detected by the installation program will appear. Select with the arrow keys the first one on the top of the list (eth0).
Select the Activate on boot option to activate the card whenever the system is restarted or initialized.
Select IPv4 support (Enable IPv4 support).We leave IPv6 support not enabled.
The next screen is called IPv4 Configuration for eth0. In this section, the main characteristics of IP addressing for the Ethernet Interfaces are set and configured. We must decide between provisioning an IP address for the Ethernet card via a DHCP server or configuring it statically (Static). It is highly recommended to assign a static IP address to the system to ensure the correct performance of all services. If the IP address is assigned via DHCP, there is a risk that the system could get a different IP address at the next restart. This can lead to the IP phones never registering, for example.
To configure a static IP address, it is imperative to know which IP address, net mask, gateway, and DNS will be used. To add these values, use the arrow keys to move to the desired option and press Enter to add/edit them. At the end, we press Tab to highlight the OK button and press Enter to go to the next step.
In the Miscellaneous Network Settings, we must add the Network Gateway IP address and the primary and secondary DNS addresses in order to route all packets through the LAN. At the end, we press Tab to highlight the OK button and press Enter to set these parameters and proceed to the Hostname Configuration screen.
On the next screen, we declare the name of the system. It could be elastix-server or elastix-pbx or whatever name you decide, just to identify the server on the network. If we select the option to name the system automatically via DHCP, the LAN DHCP will assign the name of the server if this option has already been set in the DHCP server.
If not, our server will have the name localhost. We select the manually option with the Spacebar, then go to the editing section with the Tab key and type the desired name for our system. Finally, we press Tab to highlight the OK button and press Enter.
