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SubjectRe: [PATCH] IPv6: Fix Prefix Length of Link-local Addresses
At Wed, 9 Oct 2002 17:00:18 +0100,
Derek Fawcus <dfawcus@cisco.com> wrote:

> Without reading the kernel routing table code a bit more, I'm not certain
> what that change does, but it looks as if it might be changing the
> connected route for a link local from fe80::/10 to fe80::/64.

Why do you want to use /10 prefix for link-local address ?
RFC2373 defines link-local address format as below.

| 10 |
| bits | 54 bits | 64 bits |
+----------+-------------------------+----------------------------+
|1111111010| 0 | interface ID |
+----------+-------------------------+----------------------------+

> All link local's are currently supposed to have those top bits
> ('tween 10 and 64) zero'd, however any address within the link local
> prefix _is_ on link / connected and should go to the interface.

If you wan to use /10 prefix for link-local address, you can add the
link-local address with /10 prefix to interfaces and routing table
manually at your own risk, but it should not be a default behavior.

-- Yuji Sekiya
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