Hello Vincent,

Netkit doesn't support X, and I don't want it anyway, as the user has
already several terminals on his screen (one by UML machine).

I want Wireshark to be running on the host computer, and I don't want to
use the TAP solution (students using the simulator don't have root access).

So, the only way is to connect wireshark on uml_switch (how ?).

Cheers,

Julien.

vincent-perrier wrote:
> Hello
> I made another network simulator (clownix.net) and I just run
> wireshark inside the uml machines, I do not see why you have 
> troubles to see ip frames.
> 
> 
> 
> 
> Le lundi 01 septembre 2008 à 17:44 +0200, Julien Iguchi-Cartigny a
> écrit :
>> Hello,
>>
>> (seems a developper question, apologies if it's more a user (moron)
>> question)
>>
>> I'm using Netkit (www.netkit.org): it's a network simulator using UML
>> and I want to show packets exchanged between the UML machines. I believe
>> the best way is to
>>
>> - use wireshark with the flag "-" to capture packets in the standard input.
>> - use netcat to read the data socket of uml_switch and print to the
>> standard output
>>
>> But uml_switch uses a ctl socket to open new port. I need a way to
>> manually open a port by uml_switch to connect netcat. I don't think
>> uml_switch offer command-line instruction for this, so is the best way
>> to write a short program writing on the ctl socket of uml_switch ? If
>> yes, what data to send to uml_switch ?
>>
>> Cheers,
>>
>> Julien.
>>
>>
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