I found out the problem, for some reason it wasn't sniffing localhost traffic, I
had to telnet from a different computer for it to work. I have no idea why it
does this, but hey, at least it works now.
Thanks for the help.
Quoting Jefferson Ogata <[EMAIL PROTECTED]>:
> [EMAIL PROTECTED] wrote:
Heya everyone, I'm trying to build a port knocker for fun using pcap and basic C
sockets. I've set up 10 sockets listenning on ports 4000-4010 but not actually
accepting.
I then set up a pcap filter for port 4000 (just to test it) to see if it would
grab anything. When I try to telnet to port 40
