dropping packets ?
there is a gateway between my LAN and the Internet, and now the programming part starts. :-)
I want to write a packetsniffer sitting on my Gateway. (shouldn't be the problem). The sniffer should have the opportunity to filter out disliked packets compared with a small rulebase. Wrong dest-address or whatever ...
Does anyone of you knows a way to drop these packets out of a given stream, so they dont reach their acutal destinations ?
I have read about BPF and the IPtables headers, but i havent found usefull documents :-(
edit: i forgot to say ... the programm should run in the userspace. // prefered language is C
Thanks in advance,
Last edited by jb_li; 04-13-2003 at 10:02 AM.