[ovs-discuss] Arbitrary ranges

[Ben Pfaff]

On Sat, Aug 20, 2011 at 11:36:26PM +0500, Usman Ajmal wrote:
> That's what I am interested in too. For example, I can write a wildcarded
> rule for a particular subnet say 192.168.2.* where * denotes a wildcarded
> field but I couldn't find a functionality to specify a particular range, say
> 192.168.2.1 to 192.168.2.100, as Masoud mentioned.
> 
> An example of such a rule will be something like, "If a packet received has
> an src_ip in the range mentioned above, forward it to port 2 of the
> switch (action.out_port = 2)".
> 
>  As far as I know Openflow specification 1.0, also don't talk about this.
> 
> Am I missing here something?

It's difficult to implement multidimensional range matching cleanly and
efficiently in the general case.  That's why it isn't implemented.

If you have a clean patch that implements it, we'll look at it.

Thanks,

Ben.