460 Ion Operations Manual
Clicking in the enable box will start the DHCP server in the Ion desk. It will use the settings below to
determine which IP addresses it gives out.
First IP Address- This sets the starting IP address of the range of IP addresses the DHCP server
will give out.
Number of Addresses - This sets how many IP addresses the DHCP server will give out. A set-
ting of 500 means it will give out IP addresses to the first 500 devices that ask for an IP
address.
Subnet Mask - This sets the logical network size vs. the device address. ETC’s default is
255.255.000.000 (class B). This is the subnet mask that the DHCP server will give to network
devices.
Routed - If checked, you can use the default gateway box, below, to specify the gateway you
would like DHCP devices to use. If unchecked, the DHCP server will serve the same value for
both the devices IP address and gateway, which is a suitable configuration for non-routed net-
works.
Default Gateway- This specifies the IP address of a router if one is present on your network.
This is the gateway IP address that the DHCP server will send to network devices to use.
If you are on aflat or non-routed network, the Gateway IP address should match the IP
address of the device. In order to configure this DHCP server to send out matching gateway IP
addresses, configure this gateway IPaddress to match the IPAddress Pool field. Then the
DHCP server will give out a gateway IP address that matches the IP address.
Learn Network Devices
Clicking this button will trigger the DHCP service to search the network for existing devices, and add
them to its table of known addresses. If you have equipment with statically assigned IP addresses in
your network, this will ensure the DHCP service does not serve out any IP addresses which conflict
with those devices.
Update Service (TFTP)
Clicking in the enable box will start the TFTP (Trivial File Transfer Protocol) server.
Update File Path - This sets the directory where files are to be served through TFTP. This must
be the full path to the directory, including drive letter. For example: C:\etc\nodesbin
Time Service (SNTP)
Clicking in the enable box will start the SNTP (Simple Network Time Protocol) service. You determine
if the service is running as a client (receiving time messages) or as a server (sending time messages)
during the installation process.
Client/Server - When configured as a client, a desk will attempt to synchronize its time with
the rest of the devices in the system, by listening for time information and altering its own
clock. When configured as a server, a desk will serve out time to other devices on the net-
work, acting as a time “master”
ETC Net2 Time - With ETC Net2 Time enabled, the time server will periodically broadcast (as a
server) or receive (as a client) the current time, which is required by devices running the
ETCNet2 protocol, for example, Legacy Unison systems.
External TimeServer - The External Time Server option allows you to synchronize your desk to
a third party time system at a specific IP address using the NTP or SNTP protocols. This allows
use of a specific time clock for time sync. This requires a high accuracy time clock on your net-
work.
External Server IP - If External Time Server is enabled, you will need to specify the IP address of
your external NTP or SNTP time server in this field.
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