Ubuntu
netplan.io package

  1. Bug #1750392
  2. Comment #12

Comment 12 for bug 1750392

Revision history for this message
Inq (inq) wrote : Re: nplan cannot enable IPv6 privacy extensions

I have a somewhat simmilar situation with the one described in reply #7 but with a little twist. When I configure static ipv6 address and set dhcp6: false, the systems sends a solicit message to the dhcpv6 server, optains an address from the pool, generates a privacy address and binds them to the interface in addition to the static address. I realised that there might be something wrong after I saw the dhcpv6 server updating forward and reverse maps to the hostname of the ubuntu machine (server 18.04.02 lts). The radvd server is set to assisted (ra flags - managed, other statefull, prefix flags - onlink,auto,router).
Please see https://askubuntu.com/questions/1118503/ubuntu-18-04-server-configured-with-static-ipv6-request-dhcp-ipv6-address for some details