[ovs-discuss] Q: Using netfilter to classify packets in OVS ?

Joe Stringer joe at ovn.org
Wed Jul 12 17:54:34 UTC 2017

On 7 July 2017 at 15:20, Jean Tourrilhes <jt at labs.hpe.com> wrote:
>         Hi,
>         I want to classify/match packets in OVS based on some TCP
> options, this is currently not supported by OVS but it is supported by
> netfilter. The support for ConnTrack left me wondering if I could use
> netfilter to match that field and then use the result of that in OVS.
>         Thanks in advance...

Hi Jean,

There's no native integration, but I could imagine that if Netfilter
ran on the packets first then modified the skb mark field, then OVS
ran later on that packet then plausibly you could match on the

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