The same applies to Ubuntu 12.04 server. Despite what interfaces(5) says: privext int Privacy extensions (RFC3041) (0=off, 1=assign, 2=prefer)
That statement does not seem to get honoured. This entry in /etc/nework/interfaces worked fine at least in beta2, but now does not work any more: iface eth0 inet6 static address 2001:610:148:dead::54 gateway 2001:610:148:dead::1 netmask 64 autoconf 0 privext 0 dns-search terena.org dns-domain terena.org dns-nameservers 2001:610:1:800a:192:87:106:105 2001:610:188:140:145:100:188:188 What's worse, booting a 12.04 machine with this very config will yield no IPv6 connectivity *at all*: eth0 Link encap:Ethernet HWaddr 00:50:56:86:00:25 inet addr:192.87.30.54 Bcast:192.87.30.63 Mask:255.255.255.192 inet6 addr: fe80::250:56ff:fe86:25/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:97 errors:0 dropped:0 overruns:0 frame:0 TX packets:57 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:12528 (12.5 KB) TX bytes:9673 (9.6 KB) If privext=0 doesn't get honoured and actually = 2 (as per /etc/sysctl.d/10-ipv6-privacy.conf), then it looks like autoconf=0 and privext=2 don't mix. Commenting out /etc/sysctl.d/10-ipv6-privacy.conf, or setting autoconf=1 both fix the problem. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/998223 Title: Turns on IPv6 privacy extensions regardless of settings in 10-ipv6-privacy.conf Status in “network-manager” package in Ubuntu: In Progress Bug description: After installing the latest network-manager package that fixes bug 990011, I noticed that my IPv6 address was suddenly different because IPv6 privacy extensions had been turned on. Turning them off in /etc/sysctl.d/10-ipv6-privacy.conf doesn't stop network-manager from enabling it. I'm using the default automatically generated wired connection, so there are no connection settings in /etc/NetworkManager /system-connections. If I change some settings so that NM writes the connection to system- connections and then add ip6-privacy=0 to the configuration the privacy extensions are turned off, but it would be nice if that was also the case when it is turned of using /etc/sysctl.d/10-ipv6-privacy.conf. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/998223/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp