Network Overview & Tools
Genie IP Configuration Mode Details
The following descriptions provide more information on the IP configuration modes
supported by Genie. In general automatic IP configuration assignment (LLA/DHCP) is
sufficient for most Genie installations.
Please refer to the Teledyne DALSA Network Imaging Package manual for information on the
Teledyne DALSA Network Configuration tool and network optimization for GigE Vision
cameras and devices.
Link-Local Address (LLA)
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LLA is also known as Auto-IP. It is used for unmanaged networks including direct
connections from a GigE Vision device to a dedicated NIC.
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A subnet configured with LLA cannot send packets across routers but only via Ethernet
switches.
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LLA is the recommended scheme when only one NIC is connected to GigE cameras. LLA
is fully automatic requiring no user input.
Ensure only one NIC is using LLA on your PC, otherwise IP conflicts will result.
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The NIC will automatically assign a random IP address within the 169.254.x.x subnet.
The LLA protocol ensures there are no conflicts with other devices through an arbitration
scheme.
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The Windows NIC configuration must be set to DHCP (the typical default case) and no
DHCP server must be present on the network. Otherwise, an IP address gets assigned by
the DHCP server. Windows will turn to LLA when no DHCP server answers requests
coming from the NIC.
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Windows XP takes about 1 minute to obtain an LLA IP address – Windows Vista/7 will
take about 6 seconds. With Windows XP, with no DHCP server involved, the network
adapter icon in the system tray (in Windows XP) typically shows "limited or no
connectivity".
This is normal (see Microsoft KB article #892896) and indicates that the network does
not have connectivity beyond routers.
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Windows and Genie are still running the DHCP process in the background. If a DHCP
server becomes available on the network, the NIC will get a DHCP assigned IP address
for the connected device but connections on the LLA IP address will be lost. The
Teledyne DALSA Network Configuration Tool can enable the Teledyne DALSA DHCP
server on the NIC used for the GigE Vision network.
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Important: If the host system has multiple NIC devices configured with LLA, then the
communication stack cannot accurately resolve which NIC to forward an IP packet on the
169.254 segment. Limit the number of NIC configured using LLA to one interface. It is
preferable that the Teledyne DALSA DHCP server is used instead of LLA mode (see next
section).
Genie Monochrome Series-GigE Vision Camera
Network Overview & Tools
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