For a server that use many virtual network interfaces (IP ranges) there is any posibility to find that 2 IP's from different IP ranges are pointing to same machine server? For example: - first IP range aa.bb.cc.1-5 is asigned to eth0:1-eth0:5 - second IP range dd.ee.ff.1-5 is asigned to eth0:6-eth0:10 In this case, it is possible to find that the IP aa.bb.cc.4 (from first IP range) and the IP dd.ee.ff.2 (from second IP range) are pointing to same server (machine)?