Wireshark-dev: Re: [Wireshark-dev] Can't capture traffic on some ports
From: "Abhik Sarkar" <[email protected]>
Date: Mon, 11 Feb 2008 10:02:50 +0400
Hello,

When the traffic is within the machine... the packets will pass
through the local TCP/IP stack without going through the network
interface... that's why tcpdump/wireshark are unable to see those
packets.

Hope this helps
Abhik.

On Feb 10, 2008 2:17 AM, S <[email protected]> wrote:
> I setup reverse proxy (Pound) to listen on standard ports 80 and 443 and
> pipe the data to backend server on the same machine (same IP address),
> to ports 81 & 83 respectively.
> Although everything passes OK, I can't capture any traffic on ports 81
> or 83 either by using tcpdump or wireshark. Capturing data on 80 or 443
> goes without problems.
> Any help here?
>
>
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