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Khapare Joshi <khapare77@xxxxxxxxx> writes:
> On Fri, Jan 23, 2015 at 8:04 PM, Ferenc Wagner <wferi@xxxxxxx> wrote:
>
>> Khapare Joshi <khapare77@xxxxxxxxx> writes:
>>
>>> I am not sure if ipv6 is supported for lvs ? has anyone got lvs with
>>> heart beat working ipv6 ? could you please share ?
>>
>> We are using fwmark-based IPv6 direct routing. Works fine for us. No
>> heartbeat here, though, but that shouldn't matter for IPv6.
>
> can you share your config or howto ?
There's not much to share, pretty stock config with standalone
ldirectord. A snippet from our ldirectord.cf:
virtual6=101
scheduler=wlc
real6=[XXXX::2] gate
real6=[XXXX::3] gate
real6=[XXXX::4] gate
real6=[XXXX::5] gate
service=simpletcp
checkport=80
request="GET / HTTP 1.0\n\n"
receive="<html><body><h1>It works!</h1></body></html>"
The simpletcp check comes from a time when http checks were not
implemented for IPv6. But you'd better use git ldirectord anyway, see
https://github.com/ClusterLabs/resource-agents/commits/master/ldirectord/ldirectord.in
for IPv6-related fixes. (Assuming you want ldirectord at all; it's
easy, though, see http://horms.net/projects/ldirectord/download.shtml.)
We route a dedicated YYYY::/64 block onto the director (XXXX::1), where
we make the traffic local by the anyip kernel feature (do this also on
the real servers):
ip route add local YYYY::/64 dev lo
and mark on the INPUT chain (the usual filter table is good enough):
ip6tables -A INPUT -d YYYY::/64 -p tcp -m multiport --dports http,https -j MARK
--set-mark 101
That's about it, I hope I didn't miss anything. Pretty convenient
setup, no need to care about the "ARP problem" or adding new VIPs to the
loopback interfaces until that /64 is exhausted eventually.
--
Regards,
Feri.
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