How to identify static IP addresses available

Last Updated: 28 August 2018 at 10:20

ISSUE: Can a static IP be setup for a printer in the clerk's office? How is the TM tool used to set a static IP or reserve an IP for that printer in the building?

SOLUTION:The preference would be to have the printer setup for DHCP if supported.  If DHCP is not an option, a static IP addressed must be identified from the available addresses. To identify the IP range available and addresses used, doing the following:

  • Search in TM for the desired location.  Search option can be found near the top right-hand side of the page
  • Select the firewall serial number associated with the desired location
  • This will take the firewall detail page where the IP ranges available per zone can be found.  The image below shows the public zone information as an example.
  • In the example above, there are 30 static IPs in the public (User) zone on this firewall and the IP range is 192.168.108.2 - .31.  Some of these may already be used, this just shows you the entire range of available IPs.
  • To find what devices are currently connected to the network and their associated IP addresses, select the “Network” tab and when the dropdown appears select “IP Assignments
  • On this page, select the zone to gather information about in the dropdown box on the left-hand side of the page.  The example below shows the User zone has been selected
  • Once the correct zone selected, use the “Mac Address” search feature to see all currently connected devices by selecting the magnifying glass symbol
  • Doing this will display “connected” devices.
  • Review the list of available IP addresses assigned to the connected to determine what IP address in the static range is available for use. IMPORTANT: This will only give connected devices that are currently online. If a device with a static IP is offline, it will not show up on the list.
  • Apply an available static IP to the device that needs to be configured.
  • To assign the IP in TM to this device, enter the necessary information in the following fields and select save.
  • Completing this action will not configure the device, it simply provides a log of devices that have statically assigned an IP for future reference.
  • An alternative way to finding an unused static IP address in the available range is to run a ping from the PC.  If a ping response is received, the IP is already in use. No response means the IP is not in use.  This has the same limitation as noted above. If a device is offline, it will not respond.