Topic: upload traffic pb

[Didier VIDAL]

The story :
I have successfully installed an e-smith server and gateway
on a spare machine : that was very easy
Few weeks later, I receive a severe warning from my ISP
telling me that the upload traffic of my cable modem
connection was very very high, that I was among the 10% customers that use 90% of the bandwidth, and that I may
be charged for this etc. etc.
I installed netwatch.0.9g (found in sunsite.unc.edu/pub/linux/system/network/monitor)
and watch a ftp dowload :

  1) when the ftp is issued from a machine inside the local net
     every incoming packet seems to generate an outgoing packet
     
  2) when the ftp is issued from the e-smith server the upload
      traffic is normal (1% of the download traffic)

I don't understand ...
Any help will be appreciated.

[Charlie Brady]

Didier VIDAL wrote:

> I installed netwatch.0.9g (found in
> sunsite.unc.edu/pub/linux/system/network/monitor) and watch a
> ftp dowload :
>
> 1) when the ftp is issued from a machine inside the local net
> every incoming packet seems to generate an outgoing packet

It should do that, TCP works that way. But maybe the packets weren't TCP ACK packets, but something else. You need to know
what is inside the packets to work out what is abnormal and why it is happening. Can netwatch tell you that?

Or can your ISP tell you what type of traffic is chewing up the bandwidth?

> 2) when the ftp is issued from the e-smith server the upload
> traffic is normal (1% of the download traffic)
>
> I don't understand ...

I don't understand either. Something is obviously wrong. We'll need more information to work out what.

If you can email me the output of "/sbin/ifconfig -a" from your server then I might be able to see something odd there.

Charlie