nanog mailing list archives
Re: IPv6 Interview Questions and critic
From: Peter John Hill <peterjhill () cmu edu>
Date: Tue, 27 Aug 2002 17:34:13 -0400
On Tuesday, August 27, 2002, at 05:07 PM, Marshall Eubanks wrote:
On Tue, 27 Aug 2002 14:43:38 -0400 Peter John Hill <peterjhill () cmu edu> wrote:On Tuesday, August 27, 2002, at 10:41 AM, Joe Baptista wrote: Since it so easy for a host (relative to ipv4) to have multiple ip addresses, I like what Microsoft has done. If told by a router, a Win XP box will assign itself a global unicast address using EUI-64. It will also create a global unicast anonymous address. This will not be tied to the hardware, and the OS will also limit how long it uses thatWasn't this described in an Internet draft ? Do you know what the status is -I cannot seem to find it.
http://www.ietf.org/rfc/rfc3041.txt Abstract Nodes use IPv6 stateless address autoconfiguration to generate addresses without the necessity of a Dynamic Host Configuration Protocol (DHCP) server. Addresses are formed by combining network prefixes with an interface identifier. On interfaces that contain embedded IEEE Identifiers, the interface identifier is typically derived from it. On other interface types, the interface identifier is generated through other means, for example, via random number generation. This document describes an extension to IPv6 stateless address autoconfiguration for interfaces whose interface identifier is derived from an IEEE identifier. Use of the extension causes nodes to generate global-scope addresses from interface identifiers that change over time, even in cases where the interface contains an embedded IEEE identifier. Changing the interface identifier (and the global-scope addresses generated from it) over time makes it more difficult for eavesdroppers and other information collectors to identify when different addresses used in different transactions actually correspond to the same node.
Marshalladdress before deprecating that address and creating a new preferred anonymous address. I can see servers using the EUI-64 address, whileclients use the anonymous address. It will allow servers to narrow downwho is accessing their servers to a 64 bit subnet. That will be good enough for most statistics, but will make it more difficult to do the scarier tracking of users. I have noticed that the Linux and Mac OS X ipv6 implementations so not create the private addresses automatically. Peter Hill Network Engineer Carnegie Mellon University
Current thread:
- Re: IPv6 Interview Questions and critic, (continued)
- Re: IPv6 Interview Questions and critic Stephen J. Wilcox (Aug 27)
- Re: IPv6 Interview Questions and critic John Palmer (Aug 27)
- Re: IPv6 Interview Questions and critic Kevin Oberman (Aug 27)
- Re: IPv6 Interview Questions and critic Petri Helenius (Aug 27)
- Re: IPv6 Interview Questions and critic Kevin Oberman (Aug 27)
- Re: IPv6 Interview Questions and critic Eric Gauthier (Aug 27)
- Re: IPv6 Interview Questions and critic Kevin Oberman (Aug 27)
- [OT] Re: IPv6 Interview Questions and critic William Waites (Aug 27)
- Re: IPv6 Interview Questions and critic Peter John Hill (Aug 27)
- Re: IPv6 Interview Questions and critic Marshall Eubanks (Aug 27)
- Re: IPv6 Interview Questions and critic Iljitsch van Beijnum (Aug 27)
- Re: IPv6 Interview Questions and critic Peter John Hill (Aug 27)
- Re: IPv6 Interview Questions and critic Marshall Eubanks (Aug 27)
- Re: IPv6 Interview Questions and critic Kurtis Lindqvist (Aug 27)
- Re: IPv6 Interview Questions and critic Iljitsch van Beijnum (Aug 27)
- Re: IPv6 Interview Questions and critic Valdis . Kletnieks (Aug 27)
- Re: IPv6 Interview Questions and critic Valdis . Kletnieks (Aug 27)
- Re: IPv6 Interview Questions and critic Kurtis Lindqvist (Aug 29)
- Re: IPv6 Interview Questions and critic Kurtis Lindqvist (Aug 28)
- Re: IPv6 Interview Questions and critic Peter John Hill (Aug 28)
- Re: IPv6 Interview Questions and critic Kurtis Lindqvist (Aug 29)
- Re: IPv6 Interview Questions and critic David Charlap (Aug 29)
- Re: IPv6 Interview Questions and critic Iljitsch van Beijnum (Aug 27)