IPv6 Addressing Question

[Brian E Carpenter]

On 06/04/2013 11:54, Sander Steffann wrote:
> Hi,
> 
>> To be explicit, using a link local completely breaks traceroute,
>> since ICMP replies sourced from a link local address must be
>> discarded by the next hop, according to RFC 4291 section 2.5.6.
> 
> IIRC the router will reply from the loopback address when the interface doesn't have a global address, right?

I don't know about "will" because this seems implementation
dependent. I have seen reports of traceroutes containing
link-locals, which can only happen if some routers are
forwarding packets against the standard. I think it's all a bit
murky.

   Brian