kre,

>> Michel Py wrote:
>> Absolutely. If you dial into your company, there is nothing that I
>> know of that says you must get a /64. The allocation of the SLA
>> bits is at the discretion of the company's network administrator,
>> and allocating a /60 to ...

> kre wrote:
> A while ago, you were insisting that everyone get a /48 ... (in
> this message you changed from absolute to "should", which is only
> a minor variation).

I have not changed my mind a bit:

1. Your university has a /48.
2. Your home gets a /48.
3. If your university provides you address space that you use in your
home setup, that part is a university subnet.

What I think the setup should be is:
1. get a /48 for your home. Subnet at will.

2a. If in your home setup, you need only one subnet with university
addresses, then getting a /64 from the university to that one subnet
is fine. Maybe don't need university addresses for the subnet you
use for your microwave oven.

2b. If you have more than one subnet in your home that needs
university addresses, these are multiple university subnets and then
you should get a /60 (to stay on a nibble) from them.


> Once again, all we need here is the most flexibility we can have,
> no built in assumptions about what is required to be a boundary
> (and to simply ignore any noise in any docs which claims there is
> such a thing).

I understand your point, and it is valid.
Our opinions are based for part on our respectives experiences.
Please allow me to share part of mine:

- I can remember ten years ago when the company name associated
with the word "network" was Novell, that I had to learn IP to tunnel
IPX into it. For what I remember, IPX, with the MAC address being
the host part and a fixed network/host boundary, was a lot simpler
than IP. Same idea here with the fixed /64 boundary.

- I teach IP (v4 and v6). You would be surprised to know how many
students never grasp the VLSM concept.

Michel.

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