Subj : This happens when ISPs ig
To   : Joe Delahaye
From : Tony Langdon
Date : Mon Feb 22 2016 08:52:00

-=> Joe Delahaye wrote to Michiel van der Vlist <=-

 MV> The odd thing is that it is not the prefix that has changed, only the
 MV> suffix. So it is a problem local to your system.

Sounds like privacy extensions.

 JD> I dont know how to assign the IPv6 address to a specific computer in
 JD> the system.  Unlike the IPv4 setup in the router, there is nothing like
 JD> that in the v6 setup.  I also have no idea how to do so on the computer

Most routers offer stateless autoconfiguration - they advertise the prefix and
the devices themselves work out their own IPv6 addresses within that prefix, so
there's nothing to configure in the router.

 JD> itself.  There was a time I could assign a permananent IP in the
 JD> networking setup, but I dont know if the same can be done with the
 JD> IPv6.

Yes, modern OSs allow you to allocate a static IPv6 address.  I've done it in
both Windows and Linux.

 JD> I just did an Ipconfig on the bbs system and here is what I got.

 JD> Ethernet adapter Local Area Connection:

 JD>    Connection-specific DNS Suffix  . :
 JD>    IPv6 Address. . . . . . . . . . . : 2607:f2c0:a000:54::103
 JD>    IPv6 Address. . . . . . . . . . . :
 JD> 2607:f2c0:f00e:4200:f9e0:b9ff:6166:c8ef
 JD>    Temporary IPv6 Address. . . . . . :
 JD> 2607:f2c0:f00e:4200:b8c6:4bed:d879:d6a9
 JD>    Link-local IPv6 Address . . . . . : fe80::f9e0:b9ff:6166:c8ef%6
 JD>    IPv4 Address. . . . . . . . . . . : 192.168.0.101
 JD>    Subnet Mask . . . . . . . . . . . : 255.255.255.0
 JD>    Default Gateway . . . . . . . . . : fe80::62e3:27ff:fe39:46d6%6

You're using Windows, so you'll need to go to the properties for the network
adapter, click on the IPv6 item in the list, then click the properties button,
which will open a dialog box that will allow you to manually configure an IPv6
address and DNS servers.
.... 17. Never lie to your doctor.
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