gif interface not passing IPv6 packets

[Matt Smith]

On 4 October 2011 10:48, Matt Smith <matt at xtaz.co.uk> wrote:
> I have just applied the patch, recompiled the kernel, and rebooted
> with my original configuration in rc.conf and all interfaces have come
> up as expected now. The routes are there, I can ping everything, and I
> can connect to everything as expected.

Actually saying that. I've found a problem meaning some of my software
is broken now.

Just noticed that lo0 doesn't have a ::1 address:

lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
        options=3<RXCSUM,TXCSUM>
        inet 127.0.0.1 netmask 0xff000000

If I try and add one I get this:

root at tao[~]# ifconfig lo0 inet6 ::1 prefixlen 128
ifconfig: ioctl (SIOCAIFADDR): File exists