I won't be able to try until early next week but if iptrace does /not/
see any traffic, and since this is a Win application in VPC, I should
be able to log the activity using another Win program running
simultaneously under VPC.
Does anyone have any recommendation for such a program? Free, of
course...
On Fri, 18 Jan 2008 19:04:11 +0000 (GMT), Dave Saville wrote:
>On Fri, 18 Jan 2008 12:56:45 -0500 (EST), Hakan wrote:
>
>>Dave,
>>
>>I wsas hoping that the 'net traffic originated by the Win application
>>running in VPC would then be "managed" by the host operating system,
>>i.e., eCS 1.2MR in my case, and that a program that logs all network
>>card traffic would log also this traffic. Given that I would not do
>>anything else on the 'net at the same time, I am hoping that it would
>>be feasible to figure out what the Win application sends and receives.
>
>iptrace should see it - provided you are not using virtual switch. I
>know that does *not* work. If using the NAT mode does not show up in
>iptrace then *nothing* you run on the host will see anything. As I said
>you will need a hub and a *nix box with snoop or similar on it.
>
>The reason you need a hub is that hubs send everything they get to all
>ports. Normally a box only acts on packets with it's own address in. A
>sniffer gets the NIC to pass everthing and that is how it sees the
>packets from the other machine. A switch OTH makes "virtual circuits"
>between it's ports because it "knows" what is connected to each. So a
>box can not see anything not directed at it. This is why, with a hub, a
>massive FTP between two boxes will kill performance for everything
>else. With a switch you don't notice anything - because you never see
>the FTP packets.
>
>HTH
>
>--
>Regards
>
>Dave Saville
>
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