Thanks for your input Michael. The vagueness of the problem description 
reflects my own confusion.

We are not using IGP as of now, its a small NOC with a couple of devices. 


------- Original Message -------
On Monday, July 31st, 2023 at 12:38 AM, Michael Richardson 
<mcr+i...@sandelman.ca> wrote:


> Each router needs a /128 as a loopback address to use.
> I assign them all from a single /64 for that purpose.

Ok.

> Many of your p2p ethernet links between sites/routers might not 
> need prefixes at all.

This is not clear.

> > 2. How will we be assigning static address to (DNS?) 
> > servers?
> 
> 
> I don't understand the question.

My question was that I have a /35 (say 2001:db8:2000::/35), and a router with 
three interfaces, one a p2p link with upstream, rest two interfaces are 
connected to two different segments as shown below:

                             │
                   ┌─────────┴───────┐
                   │                 │
                   │       Router    │
                   │                 │
                   └────┬───────┬────┘
                   A    │       │ B
              ┌─────────┘       └───────────┐
              │                             │
    ┌─────────┴───┐                 ┌───────┴──────┐
    │ C        D  │               E │             F│
┌───┴────┐ ┌──────┴──┐           ┌──┴─┐         ┌──┴─┐
│  dns1  │ │   mail1 │           │  S1│         │S2  │
└────────┘ └─────────┘           └────┘         └────┘

In the diagram above what will be the ip address at points A to F? C-F are 
servers and need static ip address.

> Otherwise a static allocation
> from the /64 that the routers provide.

Can you please elaborate this?

Thanks for your patience and time. I hope the questions I am having will be 
shared by many and will be addressed in the guidelines when published!

X.

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