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EX10xxA Web Page Operation
87
Network Configuration
This entry page is used to change the network configuration of the EX10xxA. By default, the
EX10xxA will attempt to locate a DHCP server. If one is found, the IP address assigned by the
DHCP server will be assumed. Otherwise, after a timeout of 20 seconds, the unit will attempt to
obtain an IP address by using Auto IP.
Auto IP is a mechanism for finding an unused IP address in the range 169.254.X.Y where X is in
the range 1 through 254 and Y is in the range 0 through 255. The device will first attempt to obtain
the specific address 169.254.X.Y, where X and Y are the second-to-last and last octets of the
device’s MAC address. However, X will be set to 1 if it is 0 in the MAC address, and to 254 if it is
255 in the MAC address. If this address is already in use, the unit will attempt to obtain other IP
addresses in a pseudorandom fashion until it finds one that is available.
To illustrate the Auto IP mechanism, Table 5-2 lists the Auto IP default address for some example
MAC addresses.
MAC Address
Auto IP Default Address
00:0D:3F:01:00:01
169.254.1.1
00:0D:3F:01:01:01
169.254.1.1
00:0D:3F:01:A3:28
169.254.163.40
00:0D:3F:01:FE:FE
169.254.254.254
00:0D:3F:01:FF:FE
169.254.254.254
T
ABLE
5-2:
A
UTO
IP
D
EFAULT
A
DDRESS
A
SSIGNMENT
If a static IP address assignment is preferred, one can be optionally assigned via this page. Click on
the
Disabled
radio button and then assign a static IP address. Following any changes, a
Hard
Reboot
must be conducted to activate them. The network configuration settings are stored in
nonvolatile memory and are unaffected by the
Reset Device
or
Hard Reboot
commands.
However, a much more convenient and recommended way to obtain the benefits of a static IP
address is to employ DHCP, but assign the instrument a reserved IP address in your company’s
DHCP server configuration. This reserved address, linked to the EX10xxA’s MAC address on the
DHCP server, would be assigned to the EX10xxA at power up initialization without having to
manually set it on the EX10xxA. The DHCP server configuration provides a centralized, controlled
database of assigned IP addresses, preventing accidental assignment of the same IP address to
multiple instruments. Consult your company’s Information Technology department for assistance.
VXI-11 Device Discovery is also supported by the EX10xxA. This allows all EX1048s on a local
network to be found without knowledge of their MAC address or IP address with the use of a
broadcast message.
Device Reset button
The device reset button on the rear panel of the EX10xxA can be used to restore default network
settings. This is useful for recovery from an incorrect or unknown network configuration. To
perform a network reset:
1)
Power off the EX10xxA.
2)
Press and hold the reset button.
3)
Power on the EX10xxA.
4)
Continue to hold the reset button for at least 30 seconds.
5)
Release the reset button.
The EX10xxA will power up as usual, but will use the default network configuration (DHCP)
instead of its previous settings.
Содержание EX1000A
Страница 25: ...www vtiinstruments com EX10xxA Introduction 25 FIGURE 1 2 RACKMOUNT HARDWARE INSTALLATION DIAGRAM ...
Страница 27: ...www vtiinstruments com EX10xxA Introduction 27 FIGURE 1 4 ISOMETRIC AND INTERNAL CJC PLATE DIAGRAM ...
Страница 28: ...VTI Instruments Corp 28 EX10xxA Introduction EX1044 DIAGRAM ...
Страница 29: ...www vtiinstruments com EX10xxA Introduction 29 FIGURE 1 5 EX1044 TABLE TOP USAGE ...
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