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Bug#584549: linux-2.6: please enable CONFIG_IP_VS_IPV6


netdev wasn't particularly interested, but Julius Volz, the author of
this code directed me to the lvs-users mailing list.  Nobody reported
any problem since then, but I got a success report, see

I also got a personal reply from Rob Gallagher.  Quoting him:

> From: Rob Gallagher <robert.gallagher@heanet.ie>
> Subject: Re: Is CONFIG_IP_VS_IPV6 still/really dangerous?
> To: Ferenc Wagner <wferi@niif.hu>
> Cc: Julius Volz <juliusv@google.com>
> Date: Thu, 17 Jun 2010 15:56:53 +0100
> We've been using IPVS with IPv6 on our mirror site, ftp.heanet.ie, for
> nearly a year now.
> The only major issue we encountered was with mtu discovery for some
> users on IPv6 tunnels, however this was quickly resolved with a patch
> from Julius that has since gone into the mainline kernel.

The referenced patch is commit 94b26551: IPVS: Add handling of incoming
ICMPV6 messages, which is seems to be already present in the Sid kernel.

Based on the above, I don't think there are known problems with this
option.  While it's untested on the wider scale, it seems to work for
those using it.  Please consider enabling it, or tell me how I could
help researching this further.

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