Hello Jay,
Thank you very much for the information.
I know that OVS 2.1 handles NXM including TCP flags, I am actually looking how
to enable the RYU controller to parse Packetin messages in order to get the TCP
flags.
There is also the Experimenter part of the OF specification which enable to
extend the action set, matching fields, error messages, etc.
Here is a link related to OVS Matching fields : http://manned.org/ovs-ofctl.8
Regards,
De : Jay Shah [mailto:[email protected]]
Envoyé : jeudi 20 novembre 2014 14:37
À : FUJITA Tomonori
Cc : Salaheddine ZERKANE; [email protected]
Objet : Re: [Ryu-devel] TCP Flags in ryu
I agree with Fujita. [1][3]
Since, i am also working on the topic, i tried to find out how to do so. OFP
does not support it directly but i think it is possible for you to construct
your own object using 'Extended OXM fields' [2]
However recently, OVS has started supporting TCP Flag matching [4]
This might help you out if you want to construct your own OXM field. [5][6]
Please do let me know if you find something exciting :)
ref: 1) http://openvswitch.org/pipermail/discuss/2010-February/003767.html
2) http://www.eecg.toronto.edu/~lie/papers/zarek_mscthesis.pdf p.20
3)https://groups.google.com/d/msg/trema-dev/m94ztsoIHDw/Jymz--q07OcJ
4) http://openvswitch.org/releases/NEWS-2.1.0
5) http://openvswitch.org/pipermail/dev/2013-September/031999.html
6)
https://jenkins.opendaylight.org/openflowjava/job/openflowjava-merge/ws/openflow-protocol-api/target/site/restconf/openflow-extensible-match.html#vlan_vid
Regards,
Jay
On 20 November 2014 13:56, FUJITA Tomonori
<[email protected]<mailto:[email protected]>> wrote:
On Wed, 19 Nov 2014 12:20:10 +0000
Salaheddine ZERKANE
<[email protected]<mailto:[email protected]>> wrote:
> Hello,
> I am a phd student working in SDN security and new in RYU, Could you
> please help me to find out if it is possible to create rules in RYU
> using matching on TCP Flags such as : RST, FIN, SYNAck, etc. and if
I don't think that the current OpenFlow protocol supports a match for
TCP flags (NXM does though).
> RYU supports a parsing of packet-in by these tcp flags? If it is the case how
> please?
> Thanks and regards,
>
> Meilleures salutations,
> Salaheddine ZERKANE
>
> {P}
>
> Doctorant
> Cubiq
>
> {T}
>
> +33 (0) 2 56 35 82 11<tel:%2B33%20%280%29%202%2056%2035%2082%2011>
>
>
> [http://signature.b-com.com/logo-bleu.gif]<http://www.b-com.com/>
>
> ZAC DES CHAMPS BLANCS
> BÂT. A · 13 RUE CLAUDE CHAPPE
> 35510 CESSON-SÉVIGNÉ (FRance)
>
>
>
>
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