In a message written on Sun, Jun 12, 2011 at 01:04:41PM +0200, Iljitsch van Beijnum wrote: > But what's the alternative? Always run DHCPv6 even if there are no router > advertisements or router advertisements with O=0, M=0?
Yes.
> Like I said before, that would pollute the network with many multicasts which
> can seriously degrade wifi performance.
Huh? This is no worse than IPv4 where a host comes up and sends a
subnet-broadcast to get DHCP. I have never heard of a network
brought to its knees from these requests. A single packet each
time a host boots is hardly a high PPS rate.
> And networks without RAs are very common. We call those networks "IPv4-only
> networks".
No, we call those server networks. I've seen lots of IPv6 networks with
RA's disabled and all static devices on them. Sometimes having hosts
dynamically get addresses and default routes is a bad thing.
> And in the current situation DHCPv6 without router advertisements is
> pointless because you may get an address, but you have no place to send your
> packets.
Which is what we would like to fix.
--
Leo Bicknell - [email protected] - CCIE 3440
PGP keys at http://www.ufp.org/~bicknell/
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