[CentOS] how to find unknown ip address?

Tue May 28 05:16:02 UTC 2013
anax <anax at ayni.com>

tcpdump

On 2013-05-28 07:03, hadi motamedi 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) ?
> Thank you
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