pcap.net block or edit packets

Question

I want to manipulate a games roomlist, for filtering the maps. My idea was, to filter the incoming packets for new rooms.

I can't find anything about how to edit or block incoming packets on the fly with pcap.net in c#.

is this possible to do?

score 3 · Answer 1 · answered May 04 '12 at 07:57

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For packet editing/filtering you can try WinDivert. The API is C so you'd need to write your own c# binding.

(disclosure: WinDivert is my project.)

answered May 04 '12 at 07:57

Basil

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can this running on OSx and linux ? – Marwen Trabelsi Feb 08 '13 at 00:57
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WinDivert is Windows only. However, divert sockets (OSX) and `netfilter_queue` (Linux) provide similar functionality. – Basil Feb 11 '13 at 02:45

score 2 · Accepted Answer · answered Apr 02 '12 at 07:52

If pcap.net is a wrapper for WinPcap, it is not possible - libpcap/WinPcap can't block incoming packets, or modify them before they reach the networking stack, it can only passively capture packets and inject them.

pcap.net block or edit packets

2 Answers2