[Winpcap-users] Filter in winpcap

[Guy Harris]

Alessandro wrote:
> Yes, but if at the begin I don't know how kind of net I have... Is there a way 
> to make a generic filter right in any net?

No.  As I indicated in my other message, there's no magic "this is going 
to a host not on this network" or "this is going to a host on on our 
institutional network" flag in IP packets, so you have to explicitly 
exclude packets that are both from and to the network or networks in 
question.