[mrtg] Outgoing data on a link

[Alejandro Cabrera Obed]

Hi everybody:

I have set the MRTG in one of my routers (Cisco 1600); the link has a
capacity of 128 Kbps. The measure of the serial interface's traffic on the
graphic tell me that there are a lot of output data (blue color in the
graphic) for periods of two or three hours once a day during a week
aproximateley.
This is an indicative that there is a service running on any computer of the
LAN that put out data to the Internet, for example FTP. But the problem is
that none of the computers make an FTP connection to the Internet (put data)
and I was thinking in an orifice in any host managed by a hacker who take
data from my network.....how can I prove that ????

Thanks a lot !!!!
Regards.

Alejandro Cabrera Obed
E-mail: sisdis at tournet.com.ar
ICQ#95838645
Bs. As. - Argentina


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