Benoit Branciard wrote:
I suspected it may be useful to set sysctl
net.ipv6.conf.<iface>.forwarding to 1, but :
- this turns the box in "router" mode, disabling RA acceptance from
default router (annoying)
IPv6 forwarding is still mandatory, but this implies manual
configuration of IP address, netmask and default route on hardware node.
This last point may be annoying: in our case the default route is
hardware-dependent, so if some day we need to replace the router (or the
router interface), default route will become invalid and manual
reconfiguration of all openVZ hardware nodes will be needed.
Too bad Linux kernel doesn't allow enabling forwarding without disabling
autoconfiguration.
I'm not sure, but I think that my setup is router independent. For my
virtual servers I got prefix 2001:718:1:e::/64 (which is unbelivable
waste of IP range but they say this is normal in IPv6). This network
block is asigned to dedicated VLAN. IPv6 Gateway for all physical
systems in that network is 2001:718:1:e::1.
My setup on HW node is:
iface eth0 inet6 static
post-up /sbin/sysctl -w "net.ipv6.conf.eth0.autoconf=0"
post-up /sbin/sysctl -w "net.ipv6.conf.all.forwarding=1"
address 2001:718:1:e::23:3254
gateway 2001:718:1:e::1
netmask 64
I'm trying to stay away of MAC dependent automaticaly asigned IPs
because of dependence on hardware.
I hope this might you, if needed I might try to ask our network
specialists about more details...
Best regards
--
-----------------------
Jan Tomasek aka Semik
http://www.tomasek.cz/
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