diff options
Diffstat (limited to 'share/man/man4/pflow.4')
| -rw-r--r-- | share/man/man4/pflow.4 | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/share/man/man4/pflow.4 b/share/man/man4/pflow.4 index cf0f4f06a57..710e168dd23 100644 --- a/share/man/man4/pflow.4 +++ b/share/man/man4/pflow.4 @@ -1,4 +1,4 @@ -.\" $OpenBSD: pflow.4,v 1.7 2008/10/10 13:55:25 sobrado Exp $ +.\" $OpenBSD: pflow.4,v 1.8 2008/10/28 16:55:37 gollo Exp $ .\" .\" Copyright (c) 2008 Henning Brauer <henning@openbsd.org> .\" Copyright (c) 2008 Joerg Goltermann <jg@osn.de> @@ -15,7 +15,7 @@ .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISINGOUT OF .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. .\" -.Dd $Mdocdate: October 10 2008 $ +.Dd $Mdocdate: October 28 2008 $ .Dt PFLOW 4 .Os .Sh NAME @@ -37,6 +37,14 @@ The data is extracted from the .Xr pf 4 state table. .Pp +Multiple +.Nm +interfaces can be created at runtime using the +.Ic ifconfig pflow Ns Ar N Ic create +command. +Each interface must be configured with a flow receiver IP address and +port number. +.Pp Only states created by a rule marked with the .Ar pflow keyword are exported by the @@ -62,6 +70,15 @@ ID and type. Header and flow structs are defined in .Aq Pa net/if_pflow.h . .Pp +There is a one-to-one correspondence between packets seen by +.Xr bpf 4 +on the +.Nm +interface, and packets sent out to the flow receiver, i.e.\& +a packet with 30 flows on +.Nm +means that the same 30 flows were sent out to the receiver. +.Pp The .Nm source and destination addresses are controlled by |