Camera Ip Behavior - Basler Pioneer User Manual

5.3 Camera IP Behavior

When a camera is powered on or reset, it exhibits the following behavior when it tries to connect to
an Ethernet network:
It checks to see if the camera has been configured to use a persistent (fixed) IP address. If the
camera has a persistent IP address configured, it will use the persistent IP address.
If no persistent IP address is configured, the camera will check to see if it is configured to use
a Dynamic Host Configuration Protocol (DHCP) server to obtain an IP address and to see if a
DHCP server is available. If the camera is configured to use a DHCP server and a DHCP
server is available, the camera will obtain an IP address from the server.
If no persistent IP address is configured and no address is obtained from a DHCP server, the
camera will perform an Automatic Private IP Addressing (APIPA) routine and will assign itself
an IP address.
Given this startup sequence, a new camera set to its default settings will do the following:
The camera checks to see if it has been assigned a persistent (fixed) IP address. With the
default settings, the camera is not assigned a persistent IP address. So no persistent address
will be found.
Because the camera does not have a persistent IP address assigned, it next checks to see if a
DHCP server is available. Assuming that the camera is directly connected to a PC in peer-to-
peer fashion, no DHCP server will be present. So an IP address will not be assigned to the
camera by a DHCP server.
Because the camera does not have a persistent IP address assigned and a DHCP server is
not available, the camera will start an APIPA routine. When the routine is complete, the camera
will be connected to the network and will have an auto-assigned IP address.
Note that the search for a DHCP server and the performance of an APIPA routine can take up
to one minute to complete.
Automatic Private IP Addressing (APIPA)
The Automatic Private IP Address routine is a network standard that dictates how an IP address will
be assigned to a network adapter and to the devices connected to the adapter when no other
means of address assignment is available. In essence, the adapter or the device will assign itself
an IP address in a range from 169.254.0.0 to 169.254.255.255 with a subnet mask of 255.255.0.0.
As part of the routine, the network adapter and the devices attached to the adapter negotiate to
make sure that there are no duplicate address assignments and that the adapter and the devices
are all on the same subnet.
For more detailed information about APIPA, you can visit:
http://www.duxcw.com/faq/network/autiop.htm
Basler pioneer
Camera and Network Adapter IP Configuration
67