I didn't reply yet because I'm still testing stuff. But privacy extensions are not the problem, they're turned off, no?:
# sysctl -a | grep tempad net.ipv6.conf.all.use_tempaddr = 0 net.ipv6.conf.default.use_tempaddr = 0 net.ipv6.conf.lo.use_tempaddr = -1 net.ipv6.conf.eth0.use_tempaddr = 0 net.ipv6.conf.eth1.use_tempaddr = 0 net.ipv6.conf.vif1/0.use_tempaddr = 0 net.ipv6.conf.vif2/0.use_tempaddr = 0 net.ipv6.conf.vif3/0.use_tempaddr = 0 net.ipv6.conf.vif4/0.use_tempaddr = 0 net.ipv6.conf.vif5/0.use_tempaddr = 0 > I have DEFINITELY run into that problem. To the point where I generally > disable the privacy extension stuff to prevent it. A whole lot of equipment > doesn't handle it right and breaks everything.

