Hi rtnet developers!
Does anybody plan to extend rtnetproxy that it can forward UDP frames from realtime NIC to linux rtproxy NIC (frames sent to unopened rt destination ports or specified ports)?
Not really, because we don't need this feature here (it's too much soft real-time). However, we already put all rtnetproxy stuff into some #ifdefs, so it's no big problem to add further conditional code (as long as it does not consists of thousands of lines ;) ).
Where is the best starting point to link this functionality into rtnet? IMHO right now all non-UDP rt NIC traffic is forwarded to rtproxy...
If think this might be a good point:
http://www.rts.uni-hannover.de/rtnet/lxr/source/ipv4/ip_input.c#L83
According the rtnetproxy documentation UDP frames from linux are all forwarded by rtproxy to the rt NIC - is this still correct for rtnet 0.7.0 ?
I'm not so deep into this, but I guess that's still true.
Will rtnetproxy be available in further rtnet version or will it be obsolete soon?
As long as there are users out there (and it seems there are) AND rtnetproxy does not interfer with the hard real-time usage of RTnet (it does not - you can simply leave this feature switched-off when compiling RTnet): Yes, it will remain part of RTnet!
Is VNIC able to handle the above scenario? Can VNIC only be used in well configured rtmac network? Does it work in a Point-2-Point NON-rtmac network (communication partner is NOT able to support rtmac)?
The VNICs require both participants to "speak" RTmac (i.e. at least the wrapping header for tunnelled packets). I already considered hacking a Null discipline (without real-time media access control but with tunnelling feature). But even then, you still have to run RTnet on both stations. I don't know if this is your scenario.
Jan
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