[Winpcap-bugs] Windows 7 and pcap_findalldevs

Larry Weaver LW at LWConsulting.com
Fri Oct 30 10:41:46 PDT 2009


I've just upgraded to window 7 and there is a new behavior for findalldevs.
Under xp the address returned could be used to add the ipaddress of an
interface to it's description

 

                        s = gcnew String(iptos(((struct sockaddr_in
*)d->addresses->addr)->sin_addr.s_addr)) + " " + s;

 

but under windows 7, the address comes back from findalldevs as 0 (leading
to a 0.0.0.0 being added to the description).  I don't have vista, so I
don't know if this is the same behavior under vista or not.

 

Wireshark has the same behavior.  When it starts under windows 7 it lists
the adapters with no ip.  Since my motherboards have two nvidia Ethernet
ports I have to select the correct one by trial and error.

 

I assume this is a bug and not just the new expected behavior.

 

Larry

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