dummynet

[synrat]

yeah it kinda seems broken. i can see the pipes being
hit by traffic, but no bandwidth limitation is done whatsoever.
I tried specifying dedicated port based pipes, that didn't work,
I tried using queues for port specification while specifying pipes
with the the same port numbers, that didn't work. I tried connecting
pipes to the queues, no result as well.

for example, to limit outgoing ftp, I tried this,

	${fwcmd} add pipe 6 tcp from ${oip} 21 to any out xmit ${oif}
   	${fwcmd} pipe 6 config bw $2Kbit/s

no effect.

	${fwcmd} add pipe 6 tcp from ${oip} 21 to any out xmit ${oif}
	${fwcmd} pipe 6 config bw $2Kbit/s
	${fwcmd} add queue 6 tcp from ${oip} 21 to any out

no effect.

	${fwcmd} add pipe 6 tcp from ${oip} 21 to any out xmit ${oif}
	${fwcmd} pipe 6 config bw $2Kbit/s
	${fwcmd} add queue 6 tcp from ${oip} 21 to any out
	${fwcmd} queue 6 config pipe 6
	
	
setsockopt error.

I guess it craps out when trying to bind queue to the pipe. Why ?? who 
knows.... I really can't make much sense from what I've read about 
dummynet in ipfw and dummynet man pages, if anyone knows of a good 
manual, please let me know.







Drew Tomlinson wrote:
> On 10/11/2004 5:47 PM synrat wrote:
> 
>> Can someone tell me about a good way to troubleshoot pipes/queues or 
>> point me in the rigtt direction. I'm trying to restrict outgoing ftp 
>> traffic and create some pipes for VOIP. dummynet and pipe rules load 
>> fine ( and are in the kernel ) but seem to have no effect. I did read 
>> the manual pages 20 times over. I tried adding pipes before doing 
>> "config bw" on them, but that didn't make any difference.
>> thanx a lot in advance.
> 
> 
> I have tried using DUMMYNET also and don't see any effect.  If you find 
> an answer, please let me know.  It's my goal to give highest priority to 
> ssh connection, next highest priority to the traffic originating on 
> machine "bigdaddy" port 8080, and then all remaining traffic gets passed 
> when there's nothing else going on.  I have DSL with a 128K uplink.  
> Here is my rule set in case someone can find my error:
> 
> #       Flush before we define
>        $fwcmd -f queue flush
>        $fwcmd -f pipe flush
> 
>        $fwcmd pipe 1 config queue 128Kbyte
>        $fwcmd queue 1 config pipe 1 weight 85 queue 8Kbyte
>        $fwcmd queue 2 config pipe 1 weight 1 queue 112Kbyte
>        $fwcmd queue 3 config pipe 1 weight 100 queue 8Kbyte
> 
>        $fwcmd add queue 1 ip from bigdaddy 8080 to any out via $oif
>        $fwcmd add queue 3 ip from any 22 to any out via $oif
>        $fwcmd add queue 2 ip from not bigdaddy not 8080 to any out via $oif
>        $fwcmd add queue 2 ip from bigdaddy not 8080 to any out via $oif
> 
> And I have these options compiled into my kernel:
> 
> options IPFIREWALL
> options DUMMYNET
> options HZ=1000
> 
> Thanks,
> 
> Drew
>