Re: packet from wired/wireless system??

[Guy Harris <guy () alum mit edu>]

On Oct 12, 2009, at 5:49 AM, biswas thapa wrote:

> Is there anyway to find out via wireshark if the packet is initiated  
> from a wired client(ethernet interface) a wireless client(wireless  
> interface)??

There's no general way to find out whether a routed packet (such as an  
IP packet) that your machine received was originally sent over an  
Ethernet interface, a Wi-Fi interface, a GPRS/EDGE/HS*PA/EV-DO/...  
interface, an ATM interface, a PPP-over-a-dialup-line interface,  
etc..  All you know is the type of interface over which it's received,  
but somebody could have sent you a packet over an Ethernet interface  
and it might have been routed to you over a Wi-Fi interface, for  
example.
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