Wireshark · Wireshark-users: Re: [Wireshark-users] Loopback in Windows

[Guy Harris <guy@xxxxxxxxxxxx>]

On Jul 19, 2008, at 10:15 AM, Sabyasachi Samal wrote:

> I have installed the MS Loopback adoptor as per the guide line. But  
> while capturing using that interface nothing is captured. I have  
> assign a IP 10.0.0.10 to that adoptor.

Presumably you have two or more programs sending network traffic to  
each other (or perhaps a program sending messages to itself).

You will need to arrange that the programs *NOT* communicate on a  
loopback address, e.g. 127.0.0.1.  This might require that you change  
how the program or programs are configured, to make them communicate  
using 10.0.0.10 rather than 127.0.0.1.

(This is not a limitation in Linux, *BSD, Mac OS X, and other OSes  
that support capturing on a loopback interface, as they *can* capture  
127.0.0.1 traffic.)