[Click] How do I do this?

[Eddie Kohler]

Discard actually DOES have a pull function, if it's used in pull mode.

Eddie


Beyers Cronje wrote:
> I doubt that Discard has a pull function.
> 
> Rather try the following config:
> 
> Socket(UDP, 10.41.224.67, 1234, VERBOSE true, CLIENT false)
> ->Print(FROMSOCKET) -> Discard;
> 
> Beyers
> 
> 
> On 8/2/07, Adam M <click at irotas.net> wrote:
>> Hi Beyers,
>>
>> I'm experimenting with the Socket approach that you mentioned, but so
>> far I'm not having much luck.
>>
>> I've got a simple configuration running just to make sure I understand
>> the basic plumbing:
>> Socket(UDP, 10.41.224.67, 1234, VERBOSE true, CLIENT false) ->
>> NotifierQueue -> Print -> Discard
>>
>> I was expecting that UDP packets destined for my local box
>> (10.41.224.67) on port 1234 would be picked up by Socket and fed
>> downstream through the NotifierQueue into Print and then dumped by
>> Discard. However, I generate such packets from a remote box (and
>> verified with Ethereal that they are indeed arriving on my local box),
>> but Click doesn't seem to react.
>>
>> The documentation for Socket is a bit confusing, and unfortunately
>> there's no example configuration for Socket in the 'conf' directory. I
>> was hoping that my mistake is egregious enough that you can easily
>> clarify it for me. :)
>>
>> Thanks again,
>> Adam
>>
>>
>> On Thu, 2 Aug 2007 00:03:14 +0200, "Beyers Cronje" <bcronje at gmail.com>
>> said:
>>> HI Adam,
>>>
>>> Why not use IPClassifier element?
>>>
>>> I.e. the following click config file will forward all UDP port 1234
>>> packets
>>> to your simulation code element, and your element will output it to
>>> KernelTun element that delivers it to the tunnel interface:
>>>
>>> FromDevice(eth0) -> Strip(14) -> MarkIPHeader -> IPClassifier(dst udp
>>> port
>>> 1234) -> YourSimulationElement -> KernelTun(1.0.0.1/8);
>>>
>>> You might need to enable promiscuous mode in FromDevice if the
>>> destination
>>> ethernet address is not eth0's address.
>>>
>>> Alternatively, if you are looking at a true UDP server, you should use
>>> the
>>> Socket element i.e.:
>>>
>>> Socket(UDP, 10.1.1.1, 1234) -> YourSimulationElement ->
>>> KernelTun(1.0.0.1/8
>>> );
>>>
>>> Beyers
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