Dectris EIGER 2 - 4 Quick Start Guide; Accessing the Detector Control Unit; Using DHCP

4. QUICK START GUIDE
4.1. Accessing the Detector Control Unit
The EIGER2 detector is controlled via the network interface of the detector control unit. Hence, the IP network
address of the detector control unit has to be known to be able to connect to the API. Depending on the
network structure, there are several ways of determining the IP network address, which are described below.
• See the Technical Specications for the default network port conguration of your detector control unit.
• The default network port conguration may be changed through the detector’s web interface (see sec-
tion 6.2).
4.1.1. Using DHCP
If there is a DHCP server available on the network, plug the network cable into a port of the detector control
unit pre-congured for DHCP. See the Technical Specications for the default network port conguration of
your detector control unit.
To determine the IP of your detector, plug in a keyboard and monitor to the detector control unit and power
it up. Then follow the following steps:
• Once the detector control unit is fully booted, a command line login prompt will appear.
• Type recovery and press return.
• If a password prompt appears, leave it empty and press return. The login name was most likely mis-
spelled, restart from point 1.
• Type i to select option (i) show ip addresses.
• The IP address will be displayed on the screen.
• If no IP is displayed, make sure that the DCU is properly connected to your network.
Alternatively, the IP network address can be retrieved by searching for the MAC address on the network. For
network safety reasons, please ask the network administrator for assistance in obtaining the IP address. If you
are the network administrator or have the required permission, the following Linux command can be used to
retrieve the IP network address:
[]$_ Linux Command
sudo nmap -sP xxx.xxx.xxx.xxx/24 | awk '/^Nmap/{ip=$NF}/yy:yy:yy:yy:yy:zz/{print ip}'\\
where xxx.xxx.xxx.xxx/24 is the network address range to be scanned (e.g. 192.168.0.1/24) and yy:yy:yy:yy:yy:zz
is the MAC address of the DHCP network port in the back of the detector control unit. You can nd the MAC
address of the port using the method described below.
Determining the MAC Address of a Port
The MAC address of the rst network port can be found on the bottom of the service tag label (pull-out label
in the front of the detector control unit, the correct address is the EMBEDDED NIC 1 MAC ADDRESS). The MAC
addresses of the second, third and fourth ports are the same as the rst one, but with the last two digits
incremented by zz+2, zz+4 and zz+6, respectively. E.g. if the rst port is 01:23:45:67:89:ab, then the second
port is 01:23:45:67:89:ad (make sure to use the hexadecimal system).
DECTRIS EIGER
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2 User Manual v1.8.2 8 | 36