IPv4 Settings
Figure 103. IPv4 tab for Interface of JACE controller, in platform TCP/IP Configuration view
The following properties are on the IPv4 Settings tab of the selected Interface:
- DHCPv4
NOTE: Only ONE adapter of any JACE controller may have DHCP enabled.A checkbox to specify DHCP (Dynamic Host Configuration Protocol) instead of static IP addressing. Successful use requires a DHCP server installed on your network. If enabled, other interface fields such as IP Address and Subnet Mask become read-only, as these are assigned by the DHCP server after the platform reboots.In general (for stability), static IP addressing is recommended over DHCP. If configuring for DHCP it is recommended that you reserve a specific, fixed IP address for this JACE host in the network’s DHCP server/router configuration, noting the MAC address of this adapter as shown above.
CAUTION: Do not enable DHCP unless sure that your network has one or more DHCP servers! Otherwise, the JACE may become unreachable over the network.
- DNS Domain
(Windows hosts only) The TCP/IP Domain Name System (DNS) domain the host belongs to, if used.
- IPv4 Address
The “static” IP address for this host, unique on your network.
Be careful to understand the following:
NOTE:- If enabling multiple ports, note that 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 JACE controller does not provide IP routing or bridging operation between different Interfaces (LAN ports, GPRS, dialup, WiFi).
- If enabling multiple ports, note that IP address must be on different subnets, otherwise the ports will not function correctly.
- IPv4 Gateway
(Windows hosts only) IP address for the device that forwards packets to other networks or subnets.
- IPv4 Subnet Mask
The “static” IP subnet mask used by this host.
- DHCPv4 Server
Applies only if DCHP is enabled. Shows read-only address of the DHCP server from which this host last obtained its IP address settings.
- DHCPv4 Lease Granted
Applies only if DCHP is enabled. Shows a read-only timestamp of when the DHCP lease started.
- DHCPv4 Lease Expires
Applies only if DCHP is enabled. Shows a read-only timestamp of when the DHCP lease will expire, and will need renewal.
- DNSv4 Servers (DNS Servers)
(Windows hosts only) The IP address for one or more DNS servers, each of which can automate associations between hostnames and IP addresses. Included are icon-buttons to Add (to enter IP address of server), Delete, and move Up/Down (to set the DNS search order).