On Aug 16, 2016, at 4:51 PM, Guus Sliepen <g...@debian.org> wrote: > On Tue, Aug 16, 2016 at 03:56:56PM -0700, Rick Thomas wrote: > >>> Another option is to add the following line to /etc/systl.conf: >>> >>> net.ipv6.conf.all.accept_ra=0 >> >> Do I understand correctly that I should use this if I want to assign a >> static IPv6 address that is *not* the same as the RA would hand out >> dynamically? I have a couple of machines where that would apply, if true. > > If you want to assign a different address then ifupdown will not > conflict with the autoconfigured one, so in that case it is not > necessary,
That works. And no “failed” messages about bringing up networking. As predicted, I have two IPv6 addresses, one the static address from /etc/network/interfaces and one assigned dynamically. > but if you don't disable accept_ra you will end up with two > addresses configured. However, when I added …accept_ra=0 to /etc/sysctl.conf and ran “update-initramfs -u” then rebooted, I still have two IPv6 addresses. > root@sheeva:~# sysctl net.ipv6.conf.all.accept_ra > net.ipv6.conf.all.accept_ra = 0 > root@sheeva:~# ip -6 addr > 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 state UNKNOWN qlen 1 > inet6 ::1/128 scope host > valid_lft forever preferred_lft forever > 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000 > inet6 2001:1234:2d2:1::111/64 scope global > valid_lft forever preferred_lft forever > inet6 2001:1234:2d2:1:f2ad:4eff:fe00:3077/64 scope global mngtmpaddr > dynamic > valid_lft 85561sec preferred_lft 13561sec > inet6 fe80::f2ad:4eff:fe00:3077/64 scope link > valid_lft forever preferred_lft forever Any thoughts? Have I misunderstood something? Thanks! Rick
