Subject: (no subject)
martin.hoever@freenet.de
Date: Mon May 12 2003 - 04:09:33 CDT
Hi,
I'm trying to find out what flowscan with cflowd really can do. You can call me a Newbie, I guess. Some questions came up when I looked at the graphs that were generated.
At first the perimeter-router was my exporter to see the traffic entering or
leaving our local subnets from/to external networks. When I used the
backbone-router as an exporter which connects our local networks, I couldn't
decide which of our subnets were inside or outside, so I could't define a
NextHop or OutputInterfaces. They are all kind of inside but there is traffic to external networks either. Flowscan said it would use direction addresses to identify outgoing traffic if it doesn't find them in the local_nets.boulder-file.
So except the traffic that's routed to the external network all traffic drawn in the graphs is incoming, because the direction addresses are found in local_nets.boulder? What about data going from one local subnet to another when I draw them as in_bytes and out_bytes? Does it appear as outgoing for the sending and incoming for the recieving subnet?
According to that: How is tx and rx traffic defined? I guess it means transmitted and recieved bytes, but in which case and in which units?
Any help would be appreciated,
with kind regards,
Martin Hoever
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