|
Hi,
I'm running into a problem using libpcap for Windows where it
sees the same packet twice when my PC is the sender, however only
once (which is normal) when my PC is the receiver. This may
be due to the software VPN I'm running on my PC. I'd like to remedy this
problem by simply dropping the duplicate packets in my callback
routine.
My question is: what is the MINIMUM set of attributes in
the packet header can uniquely identify a TCP packet?
My first guess is: ip->ip_src, ip->ip_dst,
tcp->th_sport, tcp->th_dport, ip->ip_id, tcp->th_seq,
tcp->th_ack, tcp->th_flags, tcp->th_win
Can anyone confirm or suggest an alternate list of
attributes?
DC
|
