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C h a p t e r 4 : Y o u r M a t r o x I r i s E - S e r i e s w i t h o u t D H C P
W o r k i n g o n a n e t w o r k w i t h o u t D H C P
The DHCP client of Matrox Iris E-Series tries to automatically obtain an IP
address from a DHCP server on the network. If, however, a DHCP server is not
available, the DHCP client generates a unique IP address on the 169.254 subnet
(that is, an IP address starting with 169.254.X.X) using its Automatic IP (Auto
IP) service. This is a private IP address, used only for internal addresses. If your
network uses IP addresses within this subnet, then your Matrox Iris E-Series will
be able to communicate (using TCP/IP) with any other computer on the network.
However, this type of address is not valid for computers that are visible from the
Internet and cannot be used by computers that are linked via Internet Connection
Sharing (ICS).
If a DHCP server is added to or found on the network at a later date, and Auto
IP remains enabled, Matrox Iris E-Series will automatically use the IP address
assigned to it by DHCP. Your Matrox Iris E-Series checks every 300 secs to see if
a DHCP server is available. If your Matrox Iris E-Series is moved from a LAN
with DHCP to a LAN without DHCP, by default, Matrox Iris E-Series will
automatically assign itself a private IP address with Auto IP.
In this manual, we refer to a local area network (a LAN) as a group of computers
or devices connected together in a network, where a few computers are dedicated
to serving the others (client/server architecture). Typically, LANs use DHCP to
assign IP addresses and associate each of the assigned IP addresses with a
computer's name. If your LAN does not use DHCP, you should contact your LAN
administrator to learn what IP address and/or subnet your Matrox Iris E-Series
should use. If you need to use IP addresses that are not on a 169.254 subnet, you
will need to configure your Matrox Iris E-Series to the new subnet. Your Matrox
Iris E-Series and your computer must be on the same subnet.
In this manual, we refer to a peer-to-peer network as a direct connection between
two computers (or, to be more specific, one computer and your Matrox Iris
E-Series). Even in this configuration, the two must be on the same subnet.
To change the IP address of your Matrox Iris E-Series, you will have to temporarily
change your computer's IP address to be on the same subnet as your Matrox Iris
E-Series. You can then access your Matrox Iris E-Series and change its IP address.
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