Date: Sat, 31 Oct 2009 18:27:52 +0000 (UTC) From: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> To: Randy Bush <randy@psg.com> Cc: freebsd-net@freebsd.org, sthaug@nethelp.no Subject: Re: Hi. /31 on ethernet links Message-ID: <20091031180545.C91695@maildrop.int.zabbadoz.net> In-Reply-To: <m2fx8zzvzc.wl%randy@psg.com> References: <4AEB834D.1050907@keff.org> <20091031.090152.74670981.sthaug@nethelp.no> <m2iqdvzy1x.wl%randy@psg.com> <20091031.110837.41706473.sthaug@nethelp.no> <m2fx8zzvzc.wl%randy@psg.com>
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On Sat, 31 Oct 2009, Randy Bush wrote: Hi, >> However, I was simply reacting to the claim that it was *supported* by >> Cisco. > > have you noticed a difference in the bug rate between things that are > 'supported by cisco' and those that just happen to be there? :) > > but you're right. i liked. our p2ps are /30s, not /31s. and we're > moving from /126 to /127. I am sorry, I couldn't resist; I hope you won't take everything at face value... though I hope you'll seriously think of some things... Oh what /30 /31 bikeshed and how old it is? I prefer to speak of p_t_p for point-to-point in contrast to p2p for peer-2-peer btw. I seem to remember that it used to be like that but unfortunately neither the vendors nor the people who are writing (IETF) specs make a difference anymore. I do not understand, though I know some, people who are not using a /64 on an Ethernet IPv6 link; may it be ptp or not. I know there is an old enough bikeshed out about that as well as some prosposed standards. /127 really sounds fighting a system to me. It's not that you couldn't address each atom in hour house already I'd wildy guess with a /48 but ... some people always have trouble freeing their mind from things that were like that 20 years and further back. Have you ever thought of limiting your scoped link-local space on Ethernet? So why do you need valid IPs on your interfaces at all? Why do you need more than a single global unicast address? Save your IPv6 addresses for the neighbour's fridges and toasters. /bz -- Bjoern A. Zeeb Even on Oct. 31st there is no candy with this mail.
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