Writing a Personal Firewall in Java that drop netw

问题:

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.

Closed 8 years ago.

I would like to write a Personal Firewall on Java that can drop network packet. Is it possible?

I want to capture a packet on jpcap, but how can i do drop packet? Is there a library in this event on java?

And sorry for my bad English.

回答1:

I would like to write a Personal Firewall on Java that can drop network packet. Is it possible?

No.

I want to capture a packet on jpcap, but how can i do drop packet?

You can't drop packets with either JPcap, in any of its at least 3 incarnations, or its native component libpcap/winpcap.

Is there a library in this event on java?

Not that I'm aware of, and I'm one of the authors of one of the JPcaps ;-)