Thanks for your quick response, Reco, On 23/11/2018 13:33, Reco wrote: > Hi. > > On Fri, Nov 23, 2018 at 01:18:45PM +0100, tony wrote: >> Hi, >> >> I have a Stretch VPServer with a /64 netbloch, of which only the first 2 >> addresses are used. I've been struggling for some time to get the right >> stanza to split that into two /65s, using the upper half for openvpn. > > I'd check first that some other addresses from this /64 range are routed > by your VPS provider. > I'm not sure I understand what you mean. As far as I'm aware, my VPS provider furnishes a full native /64 netblock for my exclusive use. They'll provide more, at a cost, but I see no point in that. > [snip]
> Ad-hoc configuration: > > ### check this on your OS! > # ip a d igb0 2001:db8:0:123::/64 > # ip a a igb0 2001:db8:0:123::/65 > ### > ### re-assign the other aliases previously set under the /64 block > # ip a a igb0 2001:db8:0:123::dead/128 > # ip a a igb0 2001:db8:0:123::ea:beef/128 > I'm not using any addresses other than the ::1 and ::2 in the /64 block, so presumably the last two lines are redundant. > As for the persistent configuration, that depends on the contents of > /etc/network/interfaces. Can be static (it's straightforward then), > DHCPv6 (you won't be able to do the split) or RA (ditto). > No, it's all static: auto lo iface lo inet loopback auto eth0 iface eth0 inet static address 188.246.204.210 netmask 255.255.255.0 gateway 188.246.204.1 iface eth0 inet6 static address 2a03:9800:10:54::2 netmask 64 gateway 2a03:9800:10:54::1 So what is igb0? What do you mean by ad-hoc and persistent configuration? Thanks again, Tony