capturing and injection on same interface

["Kifah A." <kifah () prz tu-berlin de>]

hi everyone,

i have a c-proggie using libpcap for captureing packets, and injecting 
them with altered payload only back to interface...now you can imagine i 
would be recapturing packets i just processed 
(altered+injectedback)...so i get into a loop!
Is there a way to prevent that? knowing i am on OpenBSD 3.4.
Is it using Hashtables? maybe having some values of IP header checked, 
and compared ti values saved in hashtables of packets injected?
any1 faced such a problem?

Cheers

-
This is the TCPDUMP workers list. It is archived at
http://www.tcpdump.org/lists/workers/index.html
To unsubscribe use mailto:tcpdump-workers-request () tcpdump org?body=unsubscribe