Yeah, Open nms have interfaces on the other subnets. I have declared the range on Configure Discovery.
I inform you that for 4 months, it was working and suddenly, opennms can only monitore node of the subnets 192.168.2.0/24
Yeah, we have a route to those networks from 192.168.0/24. I can ping them. We have a firewall CYBEROAM in our networks wich is well configured and allow connexion between the 3 subnets. I have tried telnet between 192.168.0/24 and 192.168.2/24 to connect to sqlserver and i found port opened.