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Re: Last Call: <draft-gundavelli-v6ops-pmipv6-address-reservations-00.txt> (Reserved IPv6 Interface Identifier for Proxy Mobile IPv6) to Informational RFC

2011-09-21 17:37:21
Hi Sri,

On 11-09-19 01:29 PM, Sri Gundavelli wrote:
Hi Jari:

In case of PMIPv6, we need the interface ID allocation for PMIv6
domain-wide usage. We may not be able tie this to a specific EUI-64
identifier derived from a MAC identifier of any individual MAG hosting this
configuration. 

But, if your recommendation is to tie the IPv6 interface identifier to the
reserved link-layer identifier (the other IANA action), that should be fine.
But, the reserved block that Suresh has in his spec is not tied to any
EUI-64 block ? That implies, we need an interface ID allocation from a new
block ? Or, recommend the node to generate the interface ID based on the
reserved Mac address and not allocate from the block Suresh created ?

There are two ways by which you can get a stable reserved IID. One by
reserving an IID block using an IANA registry and the other by getting a
stable MAC48 that can be used to create an IID. The only danger with
getting a stable MAC48 is that if you happen to have 2 MAGs in the same
broadcast domain, it will lead to issues.

Thanks
Suresh
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