Re: About IPv6 private address

[Fred Baker <fred@cisco.com>]

This is straight off the top of my head, without a lot of thinking.  
But suppose the device took a random (as random as it could come up  
with) ULA and decided to use it locally, and became the "router",  
which is to say, issued an RA? That would be needed for the host to  
form an address anyway. The host could then connect to the local  
router, whose address it by definition knows (it is the only foreign  
address in its neighbor database). The router could discard the ULA  
after configuration completed and it had a prefix issued by its ISP.

Do other folks have a suggestion?


On Feb 4, 2008, at 5:45 AM, blue wrote:

> Fred Baker wrote:
> > On Feb 4, 2008, at 4:59 AM, blue wrote:
> > > I want to ask if there's any reserved private IPv6 address? I  
> > > know  RFC4193 has defined Unique Local IPv6 Unicast Addresses,  
> > > which is  used to replace deprecated site-local address. However,  
> > > in user's  perspective, a device will need a well-known address,  
> > > such as  192.168.1.1 in IPv4, for a customer to connect to  
> > > without any  configuration. In RFC 4193, the address' "global ID"  
> > > is generated  randomly, and the address could not be known in  
> > > advance.
> >
> > No, there is no such "well known" address. Are you thinking of   
> > configuration purposes, such as a Linksys box uses - you http the   
> > magic address and configure it?
>
> Dear Fred:
>
> Yes, users need to configure our device via http, and if there's no  
> well-known IPv6 address, how do users know which address to connect  
> to? I have thought about a pre-configured link-local address;  
> however, browsers such as Firefox does not support link-local  
> address. Any suggestions?
>
> BR,
> Yi-Wen