Re: [ipv6-wg] Clear Guidance for Enterprises

[Michael Richardson]

Xuo Guoto via ipv6-wg  wrote:
> 1. How will we assign address to routers? Like will we should be
> assigning 2001:db8:2000::1/35 or 2001:db8:2000::1/64 for router

No.
Each router needs a /128 as a loopback address to use.
I assign them all from a single /64 for that purpose.
The /128s go into the your IGP.
Many of your p2p ethernet links between sites/routers might not need prefixes
at all.

> interface?  2. How will we be assigning static address to (DNS?)
> servers?

I don't understand the question.

> 2.1 One IP from /35?  2.2 An IP from the /64 assigned to

No.  Why would you be throwing /35s around?
If your DNS servers participate in IGP, then a /128 on a loopback interface,
assuming they have multiple interfaces works.  Otherwise a static allocation
from the /64 that the routers provide.

> We have three interfaces in the router with one facing upstream and is
> using a /127 assigned by the up stream provider, of the other two one
> iface is for servers and another for BNGs. How are ipv6 address
> allocated in these interfaces.

Statically?


--
Michael Richardson , Sandelman Software Works
 -= IPv6 IoT consulting =-  *I*LIKE*TRAINS*





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Re: [ipv6-wg] Clear Guidance for Enterprises

[Xuo Guoto via ipv6-wg]

Hello all,

Resurrecting an old thread to share some experience when trying to start 
deploying ipv6 on a small London based ISP.

As a start we are deploying in  a test location which is setup as a "site". We 
have a /29 allocated and that's been divided into /32 for each site. Which is 
again divided into /35 for various functions in the NOC including for servers 
(DNS, Speed Test etc), subscriber allocation (/64 and a /56 per subscriber), 
loopback address etc.

There is sufficient guidelines and documentation to reach till this point. But 
from here on, it's pretty dark. Some of the question for which we have no clear 
guidelines are:

1. How will we assign address to routers? Like will we should be assigning 
2001:db8:2000::1/35 or 2001:db8:2000::1/64 for router interface? 
2. How will we be assigning static address to (DNS?) servers? 
2.1 One IP from /35?
2.2 An IP from the /64 assigned to router interface?
2.3 An IP from a different /64 but from same /35?   

In the case of 2.3 will the routing work?

We have three interfaces in the router with one facing upstream and is using a 
/127 assigned by the up stream provider, of the other two one iface is for 
servers and another for BNGs. How are ipv6 address allocated in these 
interfaces. 

There are not much (atleast not to my google fu) resources addressing these 
nuts and bolts configuration information. 

I am writing this to share a from the trenches perspective to this discussion

Thanks
X. 

--- Original Message ---
On Wednesday, June 14th, 2023 at 9:38 PM, Paolo Volpato via ipv6-wg 
 wrote:


> Hi Wilhelm, All,
> 
> I have noticed that some people would be happy to cooperate to your idea of a 
> paper for IPv6 in enterprises (me included :-)
> Wonder if you have thought of any rough plan to start and organize the work.
> 
> Many thanks
> Paolo


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