Subject: RE: [rfc2462bis issue 278] 2462bis for "routers"

From: "Karen E. Nielsen (AH/TED)" <[email-masked]>
Date: Fri, 6 Feb 2004 13:59:20 +0100

> JINMEI Tatuya wrote:
> 
> >    The autoconfiguration process specified in this document 
> applies only
> >    to hosts and not routers. Since host autoconfiguration uses
> >    information advertised by routers, routers will need to 
> be configured
> >    by some other means. However, it is expected that routers will
> >    generate link-local addresses using the mechanism 
> described in this
> >    document. In addition, routers are expected to 
> successfully pass the
> >    Duplicate Address Detection procedure described in this 
> document on
> >    all addresses prior to assigning them to an interface.
> 
> Strictly speaking, routers need to be configured with prefixes as
> well as possibly some routing information, or at least information
> sufficient to run routing protocols.
> 
> It is not clear to me that their global IP addresses have to 
> configured.
> It could be based on its own prefix + IID information, or am I missing
> something? 

Well, the prefix is configured, so in that sense regardless of how the address
is installed on the interface then it IS configured and
not formed on the basis of learned prefixes in RAs.

Why is there a difference above for link-local and global
> addresses?

Because link-local addresses can be formed solely on the basis of
the link identifier which is hardcoded not configured.

BR, Karen

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