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On Mon, Sep 01, 2008 at 02:55:57PM +0200, Julius Volz wrote:
> I now managed to rework the IPVS IPv6 patches in a way that the kernel
> builds after each patch in the series. Sometimes, this adds some
> ugliness in the form of temporary constructs which are introduced in one
> patch and deleted in the next ones. I've also integrated other small bug
> fixes and cleanups from comments on the mailing lists.
Thanks, I appreciate that. I think that these patches are starting
to look quite nice. I've posted some coments (all relating to style I
think) to some of the patches. Nothing else has caught my eye so far.
> Note: these patches are not based on net-2.6 anymore, but on lvs-2.6:
I've verified that these patches apply against the lvs-next-2.6 branch of
of the lvs-2.6 tree. Which means they should also apply against Dave's
net-next-2.6 tree (net-next-2.6 and lvs-next-2.6 are currently converged).
Which would seem to be the most likely target for these changes at this
time.
> git://git.kernel.org/pub/scm/linux/kernel/git/horms/lvs-2.6.git
>
> - Full kernel patch in one file:
> http://www-user.tu-chemnitz.de/~volz/ipvs_ipv6/ipvs_ipv6_v2.patch
>
> While not all IPv6 features are working or tested, existing IPv4 features
> should still work as before. However, to use any of the new features, you
> will need a new ipvsadm with support for genetlink and IPv6:
I'm comfortable with merging things in that state.
It seems quite reasonable to add IPv6 features in an iterative
manner so long as IPv4 keeps working.
> http://sixpak.org/vince/google/ipvsadm/
> (by Vince Busam)
>
> To enable IPv6 support in IPVS, set CONFIG_IP_VS_IPV6=y.
>
> Short overview:
>
> What works with IPv6:
> - forwarding mechanisms: NAT, DR, maybe Tunnel (not fully tested yet)
> - protocols: TCP, UDP, ESP, AH (last two not tested)
> - manipulation and inspection of both IPv4 and IPv6 entries with ipvsadm
> - 6 out of 10 schedulers
>
> What is not supported with IPv6:
> - handling fragmentation or other extension headers
> - FTP application helper (can be loaded, but only operates on v4)
> - sync daemon (can be started, but only operates on v4)
> - probably some incorrect handling of ICMPv6 or other corner cases
>
> Since fragmentation and extension headers should not occur very often,
> things should "mostly" work. I tested HTTP and DNS over NAT and DR
> with various supported schedulers without encountering any problems.
> But we didn't test any exotic situations. Also, there are some TODOs
> in the code for things that haven't been tested or implemented yet.
>
> Thanks for any comments!
>
> Julius
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