[Click] nsclick promiscuous interface

[Nicolas Letor]

Hello ,

The ns2 802_3 MAC doesnt send any packets to the host sniffers
(through to the tap). I fixed it by adding on line 302 of
mac/mac-802_3.cc the following:

< 	/* --- tap out     --- */
< 	if (tap_ ){
< 	
< 		if (!tap_filterown_ || ((dst != index_) && (dst != BCAST_ADDR))) {
< 			tap_->tap(p);
< 		} 
< 	
< 	}
< 	/* --- tap out end --- */

Greetz,
Nicolas Letor
UA

On 6/1/05, Bart.Jooris <bart.jooris at intec.ugent.be> wrote:
> Hello,
> 
> Based on the information I found from Mike (November 2004 Archive) I added
> a sniffer to the simple wired lan example (nsclick tutorial by Michael Neufeld).
> 
> This is the code of my Sniffer.click:
> 
>   // Sniffer
>   //
>   FromSimDevice(eth0,4096) ->
>         ToDump(Sniffer)->
>         Discard;
> 
>   Idle->
>         ToSimDevice(eth0);
> 
> I inserted this code in the tcl script after the node generator for loop
> 
>   set i 4
> 
>   set node_($i) [$ns_ node]
>   $node_($i) add-wired-interface $chan_1_ $netll $netmac \
>           $netifq 1 $netphy
> *  $node_($i) setpromiscuous 0 1*
>   $node_($i) random-motion 0
>   $node_($i) topography $wtopo
>   $node_($i) nodetrace $tracefd
>   [$node_($i) set classifier_] setnodename "node$i­sniffer"
>   [$node_($i) entry] loadclick "Sniffer.click"
> 
> 
> After running the simple wired lan example I opened the
> Sniffer file with ethereal. There was only one entry, the arp broadcast :(
> 
> any ideas on this?
> 
> Thnx,
> 
> Bart.
> 
> 
> 
> Hello-
> You can do promiscuous mode in nsclick, you just have to enable it from
> the tcl part of your scripts. For example, to make eth0 go promiscuous:
> 
> $node setpromiscuous 0 1
> 
> -Mike
> 
> 
> 
> Nicolas Letor wrote:
> >/ Hello,
> />/
> />/ In the nsclick user manual (p11) there is a  simple bridge example
> />/ with the following click script.
> />/ "
> />/ FromSimDevice(eth0, 4096) -> Queue -> ToDump(eth0.txt) -> ToSimDevice(eth1);
> />/ FromSimDevice(eth1, 4096) -> Queue -> ToDump(eth1.txt) -> ToSimDevice(eth0);
> />/ "
> />/
> />/ I tried it out, but it doesn't work because the bridge can only
> />/ forward packets who a broadcast address.  So I thought by enabling
> />/ promiscous mode the bridge example.
> />/
> />/ Unfortunately nsclick's FromSimDevice doesn't support promiscous mode.
> />/  Has anyone an idea to solve this problem of promiscous mode?
> />/
> />/ Thanks,
> />/ Letor Nico/
> 
> --
> Bart Jooris
> Department of Information Technology (INTEC)
> Gaston Crommenlaan 8 bus 201
> B-9050 Ledeberg
> 
> Location:
> Complex Zuiderpoort - Blok C0 - Bureau 3.13
> 
> 
> 
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