Re: [Fwd: Re: About IPv6 private address]

["Erik Kline" <ekline@ekline.com>]

On 2/3/08, blue <susan.lan@zyxel.com.tw> wrote:
>
>
>
> ---------- Forwarded message ----------
> From: blue <susan.lan@zyxel.com.tw>
> To: Fred Baker <fred@cisco.com>
> Date: Mon, 04 Feb 2008 11:45:37 +0800
> Subject: Re: About IPv6 private address
> 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
>
>
>

Whatever IPv6 address you chose you'd still have to get the customer
to add that network to an interface.  I.e. if you don't listen to RAs
and SLAAC an address (NOTE: assumes RAs and not DHCP(v6)) you'd need
to include instructions on which network to add to the host interface
so the customer could talk to the device.

Can it instead be discoverable somehow?  I.e. let the device SLAAC or
DHCP its address (if possible) and then use SLP or some variant? mDNS
looking for a well-known name?

It's an interesting problem...