nanog mailing list archives
Re: IPv6 daydreams
From: Jeroen Massar <jeroen () unfix org>
Date: Mon, 17 Oct 2005 14:00:27 +0200
On Mon, 2005-10-17 at 04:43 -0700, David Barak wrote:
What I'm unhappy about is the exceedingly sparse allocation policies which mean that any enduser allocation represents a ridiculously large number of possible hosts.
See the HD ration + proposals about sizing it down to a /56 as mentioned in my previous mail to this list.
The only possible advantage I could see from this is the protection against random scanning finding a user - but new and fun worms will use whatever mechanism the hosts use to find each other: I guarantee that the "find a printer" function won't rely on a sequential probe of all of the possible host addresses in a /64 either...
SDP, uPnP, DNSSD etc and most likely also using ff02::1 and other multicast tricks. The important thing here though is that you already have a local address
Also, the 64-bit addressing scheme is sized to include the MAC address, right? Why would encoding L2 data into L3 be a good thing?
Because this gives you an automatic unique IP address. Also some L2's (firewire comes to mind) have 64 bit EUI's.
The conceptual problem that I have had with v6 from the beginning is that it's not trying to optimize a single layer, it's really trying to merge several layers into one protocol. Ugh.
One could, at least in theory and afaik not tried yet, run IPv6 as L2 :) Greets, Jeroen
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Current thread:
- Re: IPv6 daydreams, (continued)
- Re: IPv6 daydreams Suresh Ramasubramanian (Oct 16)
- Re: IPv6 daydreams Jeroen Massar (Oct 17)
- Re: IPv6 daydreams Peter Dambier (Oct 17)
- Re: IPv6 daydreams Paul G (Oct 17)
- Message not available
- Re: IPv6 daydreams Peter Dambier (Oct 17)
- Re: IPv6 daydreams Mark Smith (Oct 17)
- Re: IPv6 daydreams Randy Bush (Oct 17)
- Re: IPv6 daydreams Mark Smith (Oct 17)
- Re: IPv6 daydreams Kevin Loch (Oct 17)
- Re: IPv6 daydreams David Barak (Oct 17)
- Re: IPv6 daydreams Jeroen Massar (Oct 17)
- Re: IPv6 daydreams Paul Jakma (Oct 17)
- Re: IPv6 daydreams David Conrad (Oct 18)
- Re: IPv6 daydreams David Barak (Oct 19)
- Re: IPv6 news Michael . Dillon (Oct 17)