Hi Leonardo, to match on IP fields (or any other packet fields) not defined in the standard flow structure you will need to defined your own flow structure or make use of the vendor / experimenter extensions. You will need to include these extensions not only in the OF protocol stack at the controller and at the switch OF control module but also at the "data plane" to correctly match and handle the packets.
Zoltán has published related information based on OF 1.1 including the example to support IPv6 headers: https://openflow.stanford.edu/display/of11softswitch/Extending+the+switch https://openflow.stanford.edu/display/of11softswitch/IPv6+Extension Good luck! Let the community know how it goes! Such a flexibility of letting users define their own header / fields match structures is an important goal of OpenFlow. Christian -- Christian Esteve Rothenberg, Ph.D. Converged Networks Division (DRC) Tel.:+55 19-3705-4479 / Cel.: +55 19-8193-7087 est...@cpqd.com.br www.cpqd.com.br On Fri, May 13, 2011 at 06:39, Leonardo Linguaglossa <theleo...@gmail.com>wrote: > Hi all, > I am trying to do some experiments with OpenFlow, and I would like to know > if it is possible to watch inside the IP Option field on a passing IP > packet. My idea would be to have the possibility to forward packets with a > rule depending on this field. > Can I do this? Do I need to modify the code of a controller to let it work > as explained? > Thank you! Hope you could help me. > -- > Leonardo > > _______________________________________________ > openflow-discuss mailing list > openflow-discuss@lists.stanford.edu > https://mailman.stanford.edu/mailman/listinfo/openflow-discuss > > -- Christian
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