[netflow-tools] Flow direction

Jason Dixon jason at dixongroup.net
Sun May 22 22:42:06 EST 2005

On May 22, 2005, at 12:36 AM, Jason Dixon wrote:

> Still working on the same flowd->db application, looks like I might 
> have found an interface/direction problem with either pfsync or 
> pfflowd.  I noticed that no matter what type of traffic I push through 
> my PF firewalls, "inbound" traffic is always identified with the 
> external interface and "outbound" with the internal.  Even when I 
> attempt outbound connections from internal hosts (or the firewall 
> itself), outbound traffic is always assigned to the internal 
> interface.
> An example flow can be seen in line 1 of the output at 
> http://www.dixongroup.net/netmon.txt.  I have enabled if-bound 
> state-policy, but this has had no effect.  Is this another 
> pfsync->pfflowd issue?

Would softflowd be a better probe to use during development/testing of 
this application?  It's a netflow application, so it's not tied to PF 
for any reason.


Jason Dixon
DixonGroup Consulting

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