Technical data

TCP/IP Network Basics 7
Agilent Connectivity Guide 181
Dynamic Host Configuration Protocol (DHCP)
Dynamic Host Configuration Protocol (DHCP) allows each host on the
network to be automatically assigned a unique IP address when the
device is connected to a network that supports DHCP and is turned ON.
To enable DHCP on a Site LAN, the System Administrator assigns a
pool of IP addresses to a
DHCP Server to be leased to hosts on the
network. Each host on the network is called a
DHCP Client.
AutoIP/ZEROCONF
AutoIP/ZEROCONF can be used to automatically assign IP addresses
on networks that do not have DHCP Servers. AutoIP is a defacto
standard for IP address allocation implemented by Microsoft and Apple.
ZEROCONF is an Internet standard (RFC) that is currently under
development and is expected to be widely implemented in Linux,
Windows, etc. AutoIP and ZEROCONF are similar techniques for IP
address allocation and can interoperate together.
Both AutoIP and ZEROCONF allocate IP addresses from the link-local
IP address range (169.254.xxx.xxx). The addresses are allocated using
an ARP-based protocol to determine is the desired address is already in
use. AutoIP and ZEROCONF can both be used such that DHCP is tried
first and then AutoIP/ZEROCONF are used after DHCP times out
(typically after about 45 - 60 seconds).
Check your instrument’s User’s Guide to determine if the instrument
supports AutoIP/ZEROCONF and, if supported, if AutoIP/ZEROCONF
can be disabled.
Duplicate IP Address Detection
Duplicate IP address detection ensures that an instrument does not
attempt to start operation using an IP address that is already in use on
that network. Duplicate IP Address detection provides basic diagnostic
information to identify a problem on the network.