7EN02-0390-03

DHCP

The meter can function as a DHCP (Dynamic Host Configuration Protocol) client, allowing a DHCP server to assign IP addresses to the meter.

The meter supports assignment of the following addresses by a DHCP server when the Assignment Mode is set to DHCP:

  • IPv4 IP Address

  • IPv4 Subnet mask

  • IPv4 Gateway

  • IPv6 Global Address

  • IPv6 Gateway

Considerations for using DHCP

  • It is recommended that you also set up a DNS server and configure software and other devices to use the meter’s name to communicate with it. Alternatively, you can configure the DHCP server to always provide the same address to the meter.

  • When you switch the assignment mode from DHCP to Stored, the meter reverts to using its default IP addresses as the Stored addresses.

  • When you switch the assignment mode from Stored to DHCP, the acquired addresses display as None until the meter receives addresses from the DHCP server.

  • When using IPv6, the meter’s fully-qualified domain name (FQDN) is not sent to the DHCP server. It is important that you make sure what is configured on the meter matches what is configured on your network.

  • If the meter is not able to communicate to the DHCP server:

    • When using IPv4, the meter will try to connect to the DHCP server for approximately one minute. If the meter cannot connect to the DHCP server, it will revert to the default IP address, but the Assignment Mode will remain DHCP.

      **Check your connection to the DHCP server then either power cycle the meter or set the Assignment Mode to Stored then re-set to DHCP.

    • When using IPv6, the meter will continue to try to connect to the DHCP server, even if it does not receive an address.

      NOTE: If the DHCP server has not assigned an IP address and you need to reconnect to the meter, use the meter's IPv6 link local address.
    • For IPv4, if the meter’s fully-qualified domain name (FQDN) is not found on the DHCP server, an event is logged in the event log. For IPv6, if the meter’s fully-qualified domain name (FQDN) is not found on the DHCP server, no event is logged; this is important to keep in mind when troubleshooting communications issues in a system using DHCP.

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