From the RFC which defines these randomly generated addresses I learned that
https://bugzilla.novell.com/show_bug.cgi?id=731730 https://bugzilla.novell.com/show_bug.cgi?id=731730#c0 Summary: IPv6 ramdomly generated addresses have temp_prefered_lft (lifetime) of 1 day, however they change each hour Classification: openSUSE Product: openSUSE 12.1 Version: Final Platform: x86-64 OS/Version: SuSE Other Status: NEW Severity: Normal Priority: P5 - None Component: Network AssignedTo: bnc-team-screening@forge.provo.novell.com ReportedBy: f.de.kruijf@gmail.com QAContact: qa@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:8.0) Gecko/20100101 Firefox/8.0 The following is the setting for temp_prefered_lft: # more /proc/sys/net/ipv6/conf/eth0/temp_prefered_lft 86400 which is one day. The following are the relevant log entries in /var/log/messages Nov 21 12:17:13 os121 avahi-daemon[644]: Registering new address record for 2001:980:7480:1:2834:5dd4:c612:87a on eth0.*. The above lien is the first randomly generated IPv6 address Nov 21 12:17:13 os121 avahi-daemon[644]: Registering new address record for 2001:980:7480:1:a00:27ff:fe62:3c29 on eth0.*. The above line is the IPv6 address derived from the MAC address Nov 21 13:17:10 os121 avahi-daemon[644]: Registering new address record for 2001:980:7480:1:e56e:a40:f5b3:f179 on eth0.*. Nov 21 13:17:13 os121 avahi-daemon[644]: Withdrawing address record for 2001:980:7480:1:2834:5dd4:c612:87a on eth0. The above two lines, one hour later, show the new randomly generated IPv6 address and the removal of the fist randomly generated one. the real lifetime should at least be half the value of temp_prefered_lft. Reproducible: Always Steps to Reproduce: 1. 2. 3. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.