dummynet dropping too many packets

[Oleg Bulyzhin]

On Wed, Oct 07, 2009 at 09:42:27PM +0500, rihad wrote:
> Julian Elischer wrote:
> > rihad wrote:
> >> Oleg Bulyzhin wrote:
> > 
> >> You probably have some special sources of documentation ;-) According 
> >> to man ipfw, both "netgraph/ngtee" and "pipe" decide the fate of the 
> >> packet unless one_pass=0. Or do you mean sprinkling smart skiptos here 
> >> and there? ;-)
> >>
> > 
> > ngtee should not have any affect on the packet.. it takes a copy..
> > 
> That's a logical conclusion, although I prefer trusting the man at hand 
> (pun intended) if I haven't tested it myself to see how it works:
> 
>       ngtee cookie
>               A copy of packet is diverted into netgraph, original packet is
>               either accepted or continues with the next rule, depending on
>               net.inet.ip.fw.one_pass sysctl variable.  See ng_ipfw(4) 
> for more
>               information on netgraph and ngtee actions.
> 
> 
> Although... I've a question to Mr. Oleg:
> 
> > 2) use 'tee' rule with ng_ksocket & ng_netflow
> 
>       tee port
>               Send a copy of packets matching this rule to the divert(4) 
> socket
>               bound to port port.  The search continues with the next rule.
> 
> how is it different from one_pass=0? Both tee and ngtee w/ one_pass=0 
> continue with the next rule.

tee & ngtee are similar with one_pass=0 and different with one_pass=1

-- 
Oleg.

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=== Oleg Bulyzhin -- OBUL-RIPN -- OBUL-RIPE -- oleg at rinet.ru ===
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