hadi motamedi <motamedi24 at gmail.com> wrote: >Dear All >On my network, there is a node with unknown ip address so I do not >know about its range and it can be any of the range xx.xx.xx.xx . Is >there any tool on my centos server to find this unknown ip address >(irrespective of the range of my centos server self ip range) ? Listen with wireshark looking for things that don't belong.