User`s guide

92 34410A/11A/L4411A User’s Guide
3 Remote Interface Configuration
Configuring LAN Parameters
DHCP
DHCP is a protocol for automatically assigning a dynamic IP address, subnet
mask and default gateway to a device on a network, and is typically the easiest
way to configure your multimeter for remote communication using the LAN
interface.
• Changing the DHCP setting will cause an automatic LAN restart.
• When DHCP is enabled (factory setting), the multmeter will try to obtain an
IP address from a DHCP server. If a DHCP server is found, it will assign a
dynamic IP address, Subnet Mask, and Default Gateway to the instrument.
The DHCP server may also assign the DNS address, and may change the
specified Host Name if a manually specified Host Name is already in use.
• When DHCP is disabled or unavailable, the multimeter will use the static IP
address, Subnet Mask, and Default Gateway during power–on.
• If a DHCP LAN address is not assigned by a DHCP server, then a static IP
will be assumed after approximately 1 minute.
• If Auto–IP is enabled, a dynamic (rather than static) IP address will be
assigned by the server at power–on.
Auto–IP
The Auto–IP standard automatically assigns an IP address to the multimeter
when on a network that does not have DHCP servers.
• Changing the Auto–IP setting will cause an automatic LAN reset.
• Auto–IP allocates IP addresses from the link– local address range
(169.254.xxx.xxx).
• From the factory, the Auto–IP setting is enabled.
• The IP address is stored in non–volatile memory, and does not change when
power has been off, after a Factory Reset (*RST) command, or after an
Instrument Preset (SYSTem:PRESet) command.
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