[Bloat] ipv6 fe80:: addresses, vlans and bridges... borked?

[Dave Taht]

On Tue, May 10, 2011 at 8:30 AM, Jeremy Visser <jeremy at visser.name> wrote:

> Dave Taht said:
> > the bridged to a vlan fe80:: addresses are all the same. This strikes me
> > as a problem.
>
> You never reference link-local address by themselves anyway — they are
> always referenced with their scope ID for context. So your addresses are
> unique after all:
>
> fe80::c63d:c7ff:fe8b:6e1a%br-lan
> fe80::c63d:c7ff:fe8b:6e1a%br-guest
> fe80::c63d:c7ff:fe8b:6e1a%br-meshlink1
> fe80::c63d:c7ff:fe8b:6e1a%br-meshlink2
>

1) in a wireshark analysis, the %interface part is lost
2) we have 2^64 possible choices for fe80 addresses. I don't see what having
them all be the same buys me.
3) It worries me in the babel routing protocol
4) My bridges are misbehaving over ipv6 in the general case and I'm willing
to grasp at straws.


> Forgive me if I am stating the obvious or misunderstanding your point.
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-- 
Dave Täht
SKYPE: davetaht
US Tel: 1-239-829-5608
http://the-edge.blogspot.com
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