ipv6 next-hop link-local

Gert Doering gert at space.net
Sat Feb 19 16:37:10 CET 2011


On Sat, Feb 19, 2011 at 03:00:41PM +0100, Francis Dupont wrote:
>  In your previous mail you wrote:
>    Is *anyone* running eBGP on link-locals?
> => note this is explicitely forbidden by RFC 2545 which
> is about eBGP on globals with in a particular case an
> added link-locals (because there is no standardized or
> reliable way to deduce a link-local from a global).
> PS: I read 'link-locals' as 'link-locals only' but
> IMHO it is the intended meaning.

I was thinking of actually having the TCP endpoints on link-local 
addresses, as in 

router bgp 1234
   neighbour fe80::43:21 remote-as 4321 outgoing-interface gige 3/5"

or something like that (however it might be configured).

In that case, indeed, you wouldn't have a global next-hop to send 
in the update message.

Gert Doering
        -- NetMaster
did you enable IPv6 on something today...?

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