nanog mailing list archives
Re: The stupidity of trying to "fix" DHCPv6
From: Leo Bicknell <bicknell () ufp org>
Date: Mon, 13 Jun 2011 17:54:53 -0700
In a message written on Mon, Jun 13, 2011 at 05:41:12PM -0700, Owen DeLong wrote:
The IPv4 host does this once and gets its lease. If there is no DHCPv6 server then DHCPv6 clients would keep broadcasting forever. Not a good thing.Which is no worse than the behavior of an IPv4 host on a network without a DHCP server.
I understand on some level why the IETF doesn't want DHCPv4 to be able to hand out IPv6 stuff, and doesn't want DHCPv6 to hand out IPv4 stuff. In the long run if you assume we transition to IPv6 and run only IPv6 for years after that it makes sense. However, I do think a single option is needed in both, "ProtocolsAvailable". Today it could have "4" or "6", or "4,6". In the future, who knows. The idea being if I am a dual stacked host and I do DHCPv4 and get back that only 4 is available, I might stop doing DHCPv6 or at least make my exponential backoff even more exponential. Similarly, if I get back "4,6", I might know to immediately try the other protocol as well. This would allow end stations to greatly optimize their behavior at all stages of deployment. -- Leo Bicknell - bicknell () ufp org - CCIE 3440 PGP keys at http://www.ufp.org/~bicknell/
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Current thread:
- Re: The stupidity of trying to "fix" DHCPv6, (continued)
- Re: The stupidity of trying to "fix" DHCPv6 Iljitsch van Beijnum (Jun 12)
- Re: The stupidity of trying to "fix" DHCPv6 Leo Bicknell (Jun 12)
- Re: The stupidity of trying to "fix" DHCPv6 Ingo Flaschberger (Jun 12)
- Re: The stupidity of trying to "fix" DHCPv6 Iljitsch van Beijnum (Jun 12)
- Re: The stupidity of trying to "fix" DHCPv6 Matthew Palmer (Jun 12)
- Re: The stupidity of trying to "fix" DHCPv6 Leo Bicknell (Jun 12)
- Re: The stupidity of trying to "fix" DHCPv6 Jimmy Hess (Jun 12)
- RE: The stupidity of trying to "fix" DHCPv6 Kelly Setzer (Jun 13)
- Re: The stupidity of trying to "fix" DHCPv6 Owen DeLong (Jun 13)
- Re: The stupidity of trying to "fix" DHCPv6 Owen DeLong (Jun 13)
- Re: The stupidity of trying to "fix" DHCPv6 Leo Bicknell (Jun 13)
- RE: The stupidity of trying to "fix" DHCPv6 Kelly Setzer (Jun 13)
- Re: The stupidity of trying to "fix" DHCPv6 Joel Jaeggli (Jun 14)
- Re: The stupidity of trying to "fix" DHCPv6 Owen DeLong (Jun 16)
- Re: The stupidity of trying to "fix" DHCPv6 Ricky Beam (Jun 13)
- Re: The stupidity of trying to "fix" DHCPv6 Joel Jaeggli (Jun 13)
- Re: The stupidity of trying to "fix" DHCPv6 Owen DeLong (Jun 14)
- Re: The stupidity of trying to "fix" DHCPv6 Mikael Abrahamsson (Jun 14)
- Re: The stupidity of trying to "fix" DHCPv6 Owen DeLong (Jun 14)
- Re: The stupidity of trying to "fix" DHCPv6 Mikael Abrahamsson (Jun 14)
- Re: The stupidity of trying to "fix" DHCPv6 Owen DeLong (Jun 14)