IPv6 Address Planning

[JORDI PALET MARTINEZ]

One option that I've used and seen used by others several times is /126.

Also it could be convenient to use the first /64 of each /48 to number the
"customer" infrastructure (here you still can choose the /126, of course).

Regards,
Jordi




> De: Cody Lerum <clerum at transaria.com>
> Responder a: <ipv6-ops-bounces+jordi.palet=consulintel.es at lists.cluenet.de>
> Fecha: Tue, 9 Aug 2005 12:53:10 -0600
> Para: <ipv6-ops at lists.cluenet.de>
> Asunto: IPv6 Address Planning
> 
> Currently we are in the process of planning our IPv6 addressing schema
> for our network. We are a service provider with around 20 core routers,
> and several hundred enterprise customers. These customers currently
> connect back to our core via a separate VLANs or channelized
> DS1/DS3/OC-X type interfaces. Thus currently lots of /30 IPv4 blocks.
> 
> Our address allocation is 2001:1940::/32
> 
> Here is our current plan, but we are looking for suggestions from people
> who have been down this road before. The plan is to break out a /48 for
> our organization. Then break out the first /64 for loopbacks, and the
> next /64 for point-to-point connections. The PTP /64 then breaks out
> further into 1 /80 for core links, and 1 /80 for each of our
> distribution sites. Within these /80's are individual /112's for PTP
> links. What this will allow us to do is aggregate each sites PTP
> connections into /80's within our IGP.
> 
> Looks something like this.
> 
> 2001:1940::/48 - TransAria
> 
> 2001:1940::/64 - Loopbacks/NMS/ETC
> 2001:1940::1/128 - Router 1
> 2001:1940::2/128 - Router 2
> 
> 2001:1940:0:1::/64 - PTP Links
> 2001:1940:1::/80 - Core Links (non-aggergratable)
> 2001:1940:0:1::/112 - Core Link 1
> 2001:1940:0:1::1 - Router A
> 2001:1940:0:1::2 - Router B
> 2001:1940:0:1::1:1/112 - Core Link 2
> 2001:1940:0:1::1:1 - Router A
> 2001:1940:0:1::1:2 - Router B
> 
> 2001:1940:0:1:1::/80 - Distribution Site 1
> 2001:1940:0:1:1::/112 - Customer Link 1
> 2001:1940:0:1:1::1 - Dist Router
> 2001:1940:0:1:1::2 - Customer Equipment
> 2001:1940:0:1:1:0:1:0/112 - Customer Link 2
> 2001:1940:0:1:1:0:1:1 - Dist Router
> 2001:1940:0:1:1:0:1:2 - Customer
> Equipment
> 
> 2001:1940:0:1:2::/80 - Distribution Site 2
> 2001:1940:0:1:2:::/112 - Customer Link 1
> 2001:1940:0:1:2::1 - Dist Router
> 2001:1940:0:1:2::2 - Customer Equipment
> 2001:1940:0:1:2:0:1:0/112
> 2001:1940:0:1:2:0:1:1 - Dist Router
> 2001:1940:0:1:2:0:1:1 - Customer
> Equipment
> 
> 2001:1940:1::/48 - Customer 1 Assignment
> 2001:1940:2::/48 - Customer 2 Assignment
> 2001:1940:3::/48 - Customer 3 Assignment
> 
> Thoughts?
> 
> Thanks!
> 
> Cody




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