[Click] How to check even or odd udp or tcp port with IPClassifier

[Eddie Kohler]

Classifier can do it, and so can IPFilter/IPCLassifier:

IPClassifier(dst port & 1 == 0, dst port & 1 == 1)

First output port is even, second is odd.

Eddie


Paolo Mailing wrote:
> Hi to all,
> I'd like to distinguish between even port and odd port in udp and tcp flows.
> There's an element which I can use?
> If not, someone knows how to modify IPClassifier or IPFilter or
> Classifier to add this feature.
> Thanks
> Paolo
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