On Jan 31, 2014, at 12:40 PM, Fernando Gont <fernando@gont.com.ar> wrote:

Folks,

I'm wondering about the following two aspects of different DHCPv6 implementations out there:

1) What's the pattern with which addresses are generated/assigned? Are they sequential (fc00::1, fc00::2, etc.)? Random? Something else?

Depends on your DHCPv6 server implementation. I believe ISC defaults to random. I’m not sure if that’s configurable or not.

2) What about their stability? Is there any intent/mechanism for them to be as "stable" as possible? Or is it usual for hosts to get a new address for each lease?

I believe they are generally stable in that once a DUID is associated with an address, that association is persistent, but that may also be implementation dependent.

P.S.: I understand this is likely to vary from one implementation to another... so please describe which implementation/version you're referring to.

I have limited experience with the ISC DHCPv6 server. Mostly I just use SLAAC. Owen