Re: Use of extended prefix lengths

[Mohacsi Janos <mohacsi@niif.hu>]

On Thu, 5 Jun 2008, Dunn, Jeffrey H. wrote:

> Colleagues,
>
>
>
> I was discussing the possibility of using IPv6 prefix lengths greater
> than 64 bits with some colleagues and wondered if anyone had any
> experience with doing so.  Specifically, has anyone tried it?
> Thoughts?

One of my colleague tried /126 with DHCPv6 address assignment and it seems 
to be mediocre success:
Linux (Dibbler) client was working almost alright - with some extension
Windows Vista failed  - not really supporting longer prefix.


for point-to-point links prefix longer than /64 was worked without any 
problem on Cisco boxes.

Best Regards,


Janos Mohacsi
Network Engineer, Research Associate, Head of Network Planning and Projects
NIIF/HUNGARNET, HUNGARY
Key 70EF9882: DEC2 C685 1ED4 C95A 145F  4300 6F64 7B00 70EF 9882




> Best Regards,
>
> Jeffrey Dunn
> Info Systems Eng., Lead
>
> Center for Enterprise Modernization
> MITRE Corp.
>
> 301-429-5377 (Office)
> 301-731-8862  (FAX)