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.
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.
Meter domain name
A DNS (domain name system) server maps domain names to IP addresses. If you configure the
meter to use a DNS server, the meter can communicate with other network resources using their
domain names, rather than their IP addresses, and vice versa. For example, if your network has
an SMTP server with the domain name of smtp.company.com, you can enter smtp.company.com
as the SMTP Server address in the meter’s communications settings.
9810 series - User manual Communications
7EN05-0390-08 84
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