Technical data

92 Agilent Connectivity Guide
5 Connecting Instruments to LAN
In general:
• IP Address: The local router or the corporate DHCP server assigns
IP addresses.You can set instrument IP address manually but you
must ensure that each instrument on the subnet uses the same
network address.
•Hostname: The Hostname is the host portion of the domain name,
which is translated into an IP address. If DHCP is enabled, the DHCP
server can change the specified Host Name.
•DHCP: In general, allow the local router or corporate DHCP server
to assign IP addresses to the instruments. This ensures that each
instrument is correctly configured for its local subnet. Check
instrument documentation to ensure this capability.
• DNS: If DNS is available and your instrument uses DHCP, the
Hostname is registered with the Dynamic DNS service at power-on.
• Subnet Mask: If DHCP is enabled, the Subnet Mask is
automatically configured.
Table 2 Summary of Network Topologies
Network Topology Description Comments
Direct Connection Direct connection between PC and single instrument (requires
cross-over cable).
Only connects one instrument, suitable for
instrument testing.
Private Instrument
Subnet
PC has NIC connected to a private instrument subnet Recommended topology for deployed
manufacturing test systems.
Private Subnet on
Corporate Intranet
Instruments and PC on same subnet, connected to corporate LAN
through a router
Recommended topology for deployed
manufacturing test systems.
Open Subnet on
Corporate Intranet
Instruments and PC both on corporate internet, but on same
subnet
Simple connection for many users.
Instruments on
Corporate Intranet
Instruments and PC both on corporate LAN, with arbitrary
topology of routers/bridges/switches/hubs between them.
Generally not recommended.
WAN Instrument and PC both on the network, separated by firewall Agilent Connection Expert does not
support this topology since it requires
access through one or more firewalls.