Re: Take ISP BB scenarios as WG document?

[Gert Doering <gert@space.net>]

Hi,

On Mon, Jan 24, 2005 at 12:02:09PM +0800, Alan Chang wrote:
> My questions are:
> If yes, does this mean the router can do stateless autoconfiguration?
> If no, how does a CPE router set its address and default route except using
> manual configuration.

Existing router implementations can indeed do stateless autoconfiguration.

cisco25(config-if)#ipv6 address ?
  WORD                General prefix name
  X:X:X:X::X          IPv6 link-local address
  X:X:X:X::X/<0-128>  IPv6 prefix
  autoconfig          Obtain address using autoconfiguration

but the question remains "how useful is this feature?".  

Yes, the router can autoconfigure its "external" IPv6 address, but 
it cannot use stateless autoconfiguration to setup his "internal"
network interface(s), and thus provide stateless autoconf to 
network clients.  

For that part, one could use DHCP prefix delegation, though, and with
the combination of both, you can get a fully autoconfiguring IPv6 (CPE)
router.

Gert Doering
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