> On May 2, 2018, at 11:09 PM, Vishal Deep Ajmera > <[email protected]> wrote: > >>> Zak is working on that feature; I expect patches will hit the mailing list >>> in the next week or two. >>> >>> Hi Justin, >>> >>> As part of this feature, will it also enable us to rewrite the options >>> tlv:type field from SLL (1) to TLL (2) Or may be a set-field option to >>> rewrite these fields in Options TLV. This will help in supporting multicast >>> solicitations. > >>> I believe you should already be able to set the SLL and TLL options. Does >>> that not work for you? > In order to set up IPv6 NA responder we will be required to modify incoming > solicitations with SLL option (multicast solicitations) to an Advertisement > with TLL option. My understanding is that current support is only to modify > existing TLL option, if already present in the packet.
Hi, Vishal. I had some bad information, and you are correct that this case is not properly handled. On further consideration, we decided that this isn't the right path to go down, since it's not clear what all the possible ICMP transformations should look like. Also, since a proper IPv6 stack will require a controller (e.g, to send out periodic router advertisements), we think it's best to just have the controller handle the solicitation messages itself. I plan to update the ovs-fields document to indicate that changing the ICMP type and code is discouraged except for possibly handling ping packets. Zak had completed most of the work to set the RSO flags, so I'm sure he'd be happy to send it out if you want to take the patches in yourself. However, I don't think it makes sense to include that functionality more generally in OVS. Thanks, --Justin _______________________________________________ discuss mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
