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SubjectRe: [PATCH] IPv6: Fix Prefix Length of Link-local Addresses
On Thu, Oct 10, 2002 at 09:00:34AM +0900, Yuji Sekiya wrote:
> At Wed, 09 Oct 2002 16:45:04 -0700 (PDT),
> ** David S. Miller <davem@redhat.com> wrote:
>
> > The reason we change the prefix length from /10 to /64 is
> > following spec and adapting other imprementations.
> >
> > I think Derek's explanation shows that the specification
> > allows the /10 behavior.
>
> Hmm... we interpret the spec as /64 prefix.
>
> > Also, I suspect that since Derek works for Cisco, some "other
> > implementations" behave how he describes. :-)
>
> I have cisco box which installed IPv6 IOS.
> But it defines no prefix length at an interface,
>
> FastEthernet4/1 is up, line protocol is up
> IPv6 is enabled, link-local address is FE80::201:64FF:FEA3:ED55
>
> and outgoing interface of routing table is NULL ? :-)
>
> L FE80::/10 [0/0]
> via ::, Null0, 7w0d

Turn on 'debug ipv6 nd', 'debug ipv6 icmp', 'debug ipv6 pack d'

Then do 'ping ipv6' specify a link local of say fe80:1910::10 and
an egress interface, and watch what happens.

DF
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