User`s manual

Moxa VPort 16-M12 System Configuration
4-10
Access Method
VPort products support the DHCP protocol, which means that the VPort can get its IP address from a DHCP
server automatically when it is connected to a TCP/IP network. The Administrator should determine if it is more
appropriate to use DHCP, or assign a fixed IP.
Setting Description Default
DHCP Get the IP address automatically from the DHCP server. DHCP
DHCP + Auto configure
Get the IP address automatically from the DHCP server, and
download the configurations from the TFTP server with Opt
66/67 mechanism.
Use fixed IP address Use the IP address assigned by the administrator.
NOTE
We strongly recommend that the administrator assign a fixed IP address to the VPort, since all of the functions
and applications provided by the VPort are active when the VPort is connected to the network. Use DHCP to
determine if the VPort’s IP address may change when then network environment changes, or the IP address is
occupied by other clients.
Auto Configuration
In a mass installation, it is time consuming to configure each of the many devices one by one. Therefore, DHCP
Opt 66/67 provides a mechanism whereby configurations can be saved on a TFTP server. Once a new device is
installed, the configurations can be downloaded to this new device automatically. By doing this, the installer
can save a lot of time and efforts in mass device installation. Follow the steps below to use the
auto-configuration function via Opt 66/67.
Step 1:
When VPort 16-M12 enables the auto-configuration function, it will ask for the IP address from DHCP server,
and the path of the TFTP server and configuration file.
Step 2:
Once VPort 16-M12 completes the IP settings, it will acquire the configuration file from the TFTP server, and
check if this configuration file is right or not.