Q. In our network we are monitoring, there are four subnets:

10.0.0.XXX
10.0.1.XXX
10.0.2.XXX
10.0.3.XXX


Do I need to have a NIC with an IP address connected to each subnet to have InterMapper see and monitor each network?

A. The InterMapper machine needs an IP route to the four subnets. One way to do that is to have multiple NICs; another way is to have a router that knows how to send packets to the destination subnets.