User guide

Introduction
8
840 USE 115 00 Version 1.0
1.2.2 Address Labels
Each Quantum Ethernet web embedded server module has two address labels.
One identifies the Ethernet or MAC address. The other label allows
y
ou to record
the module’s Internet Protocol
(
IP
)
network address.
Ethernet
Address Label
The Ethernet address or MAC address is assi
g
ned at the factor
y
and is recorded
on a label
on the front panel, above the cable connector. This is a uni
q
ue 48-bit
g
lobal assi
g
ned address. It is set in PROM. The Ethernet address is recorded on
the label in hexadecimal, in the form 00.00.54.xx.xx.xx.
Internet Protocol
(IP) Network
Address Label
The IP address comes from one of three places in the followin
g
order:
The confi
g
ured address
An address from a BOOTP server
Derived IP network address
You can use the derived address, which is calculated from the Ethernet address
set b
y
the factor
y
. You can also confi
g
ure a uni
q
ue address via Modsoft or
Concept. Throu
g
hout this book, these alternatives will be referred to as
the derived
IP network address
and
a user-configured address.
The IP network address has the form xxx.xxx.xxx.xxx, where each
g
roup xxx is a
decimal number from 0 to 255. A space is provided for recordin
g
this address on
the label inside the front door panel of the module.
If
y
ou will be operatin
g
on an open network,
y
ou should opt for a user-confi
g
ured
address. Obtain a valid address from
y
our network administrator.
If
y
ou will be operatin
g
on a local network,
y
ou ma
y
use the derived IP network
address. However,
y
ou should check with
y
our network administrator first to ensure
that this address is not alread
y
in use.
To calculate the derived IP network address, convert the ri
g
htmost ei
g
ht di
g
its of
the Ethernet address from hex to decimal. The
y
will take the form 84.xxx.xxx.xxx,
where each
g
roup xxx is a decimal number from 0 to 255.
Figure 4 Global Address Label
IEEE GLOBAL ADDRESS
000054xxxxxx