Configure TCP/IP network settings

This step sets up the properties required for client stations to connect to this server. IPv6 support is available, however this document focuses on IPv4 configuration.

If you have not already done so, click Next.
The TCP/IP configuration window opens.
Review, and if needed adjust other TCP/IP settings, which (in usual order of importance) include:
- Hostname —The default may be “localhost,” or enter another name you want to use for this host.
  
  NOTE: In some installations, changing hostname may result in unintended impacts on the network, depending on how the DHCP or DNS servers are configured. If in doubt, leave hostname at default.
- Hosts File — Click control to expand edit field. Format is a standard TCP/IP hosts file, where each line associates a particular IP address with a known host name. Each entry should be on an individual line. The IP address should be placed in the first column, followed by the corresponding host name. The IP address and the host name should be separated by at least one space.
- Use IPv6 — Enable if using this feature.
- DNS Domain — Enter the name of network domain, or if not applicable, leave blank.
- IPv4 Gateway — The IP address for the device that forwards packets to other networks or subnets.
- DNSv4 Servers — Click the add button for a field to enter the IPv4 address of one or more DNS servers.
- IPv6 Gateway — Use this if you enabled Use IPv6.
To add a line, click at the end of the last line and press Enter.
Type in the required data on the new line.
To return to see all TCP/IP settings, click the control to contract the edit field when done.
Review the settings for Interface 1 on the IPv4 Settings tab, which include the temporary factory-shipped IP address.
Do one of the following:
- If the network supports DHCP, enable it (click DHCP Enabled). In this case, the IPv4 Address and Subnet Mask fields become read only.
- Otherwise, a the host a unique IPv4 Address for the network you are installing it on. No other device on this network should use this same address. Include the appropriate Subnet Mask used by the network.
CAUTION: In general (for stability), static IP addressing is recommended over DHCP.Do not enable DHCP unless you are certain that the network has DHCP servers!  Otherwise, the host may become unreachable over the network.
To define a second interface, click the down arrows.
NOTE: JACE-3,-6,-7 controllers have two Ethernet ports, where Interface 2 is available for configuring the LAN2 (secondary) Ethernet port. By default, this port is disabled, that is without a default address. Intended usage is for:
- Isolating a driver’s Ethernet traffic from the primary (LAN1) interface, OR
- In some cases, LAN2 may be set up with a standard, fixed, IP address that is used only by a company’s service technician, when on site. This allows access to the host without disconnecting it from the network, or without connecting the technician’s service PC to the customer’s network (which might go against local IT security policies).
  In any case, only one LAN port can be set as DHCP. If enabling LAN2, you typically specify another (network) static IP address and the appropriate subnet mask.
  
  Also note the following:
- If enabling both LAN ports, the LAN1 IP address and LAN2 IP address must be on different subnets, otherwise the ports will not function correctly.
  For example, with a typical “Class C” subnet mask of 255.255.255.0, setting Interface 1=192.168.1.99 and Interface 2=192.168.1.188 is an invalid configuration, as both addresses are on the same subnet.
- A host does not provide IP routing or bridging operations between different Interfaces (LAN ports, GPRS, dialup).
To reset all settings (all interfaces) back to their original pre-step values, click Undo Changes.
Click the Next button to go to the next step.

Configure TCP/IP network settings

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