Re: source addr. for icmp if link-local-only on interface

if you are talking about EUI - 64 , then the host portion of ip address is
borrowed from interface mac address itself ..

On Fri, Sep 2, 2011 at 11:58 AM, Roger Pfaeffli <rpf23543_at_gmail.com> wrote:

> Hi group,
>
> On a router, if I have on a WAN link just the ipv6 link local address
> ('cause this is enough for routing) and I execute a v6ping to a global
> scoped address somewhere in this WAN, my router chooses a global
> scoped address, borrowed from another interface of my router. That's
> at least what I've tested.
> How is this "borrowed" address chosen and where is this specified? I
> could not find an rfc describing exactly this. I guess this is vendor
> specific, if so, is there a documentation from Cisco explaining this?
>
> regards
>
> Roger #23543
>
>
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Received on Fri Sep 02 2011 - 13:35:46 ART