yum install http://mirror.de-labrusse.fr/NethDev/nethserver-diagtools-0.0.1/nethserver-diagtools-0.0.6-1.ns7.sdl.noarch.rpm
with this version you can scan each green interfaces with arp-scan
yum install http://mirror.de-labrusse.fr/NethDev/nethserver-diagtools-0.0.1/nethserver-diagtools-0.0.6-1.ns7.sdl.noarch.rpm
with this version you can scan each green interfaces with arp-scan