Re: IPv4 traffic on "ietf-v6ONLY"
David Farmer <farmer@umn.edu> Thu, 16 November 2017 00:39 UTC
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From: David Farmer <farmer@umn.edu>
Date: Wed, 15 Nov 2017 18:39:41 -0600
Message-ID: <CAN-Dau3mVnTKqkzYWHa3qnTHWWcos=BXKgGfKsyD9ScWAB4obA@mail.gmail.com>
Subject: Re: IPv4 traffic on "ietf-v6ONLY"
To: Brian E Carpenter <brian.e.carpenter@gmail.com>
Cc: 6man WG <ipv6@ietf.org>
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On Wed, Nov 15, 2017 at 5:54 PM, Brian E Carpenter < brian.e.carpenter@gmail.com> wrote: > On 16/11/2017 08:15, james woodyatt wrote: > > On Nov 15, 2017, at 02:47, Philip Homburg <pch-ipv6-ietf-4@u-1.phicoh. > com> wrote: > >> > >> The safest option to do that is a DHCPv4 option that says 'no IPv4 > service here, go away'. > > > > > > Better: extend ARP with a signal that says, “ARP is not welcome here." > > However, the IPv4 traffic seen on ietf-dns64 is negligible and harmless. > That is a practical indication that this problem probably isn't worth > solving. > > I submit for example that sending a new "not welcome" response to > ARP requests would do more harm than good, since the legacy hosts > would probably react badly. > > Brian > I'd love to see some data to back up the conjecture, that is the "traffic ... is negligible and harmless" I completely agree that "a new "not welcome" response to ARP requests would do more harm than good." The problem I see is that WiFi airtime is precious, and worse yet broadcast packets (DHCPv4 discover and ARP) can use excessive airtime in some situations, more than the fraction of the bits they represent would indicate. On a wired network I'm not all that worried, but on WiFi, I'd like some data on the matter. On enterprise WiFi, you could filter ethertypes 0x0800 and 0x0806 at the AP, or they usually have DHCP and ARP proxies, either of which would prevent sleeping devices from being pestered by the traffic. However, the traffic still consumes airtime and that's my concern, especially on large congested WiFi networks, like at IETF. Thanks. -- =============================================== David Farmer Email:farmer@umn.edu Networking & Telecommunication Services Office of Information Technology University of Minnesota 2218 University Ave SE Phone: 612-626-0815 Minneapolis, MN 55414-3029 Cell: 612-812-9952 ===============================================
- IPv4 traffic on "ietf-v6ONLY" Alexandre Petrescu
- Re: IPv4 traffic on "ietf-v6ONLY" Brian E Carpenter
- Re: IPv4 traffic on "ietf-v6ONLY" Jen Linkova
- Re: IPv4 traffic on "ietf-v6ONLY" Lee Howard
- Re: IPv4 traffic on "ietf-v6ONLY" Brian E Carpenter
- Re: IPv4 traffic on "ietf-v6ONLY" Jen Linkova
- Re: IPv4 traffic on "ietf-v6ONLY" Mark Andrews
- Re: IPv4 traffic on "ietf-v6ONLY" Ralph Droms
- Re: IPv4 traffic on "ietf-v6ONLY" joel jaeggli
- Re: IPv4 traffic on "ietf-v6ONLY" Brian E Carpenter
- Re: IPv4 traffic on "ietf-v6ONLY" Brian E Carpenter
- Re: IPv4 traffic on "ietf-v6ONLY" Philip Homburg
- Re: IPv4 traffic on "ietf-v6ONLY" Rajiv Asati (rajiva)
- Re: IPv4 traffic on "ietf-v6ONLY" Brian E Carpenter
- Re: IPv4 traffic on "ietf-v6ONLY" Alexandre Petrescu
- Re: IPv4 traffic on "ietf-v6ONLY" Alexandre Petrescu
- Re: IPv4 traffic on "ietf-v6ONLY" Philip Homburg
- Re: IPv4 traffic on "ietf-v6ONLY" Alexandre Petrescu
- Re: IPv4 traffic on "ietf-v6ONLY" Warren Kumari
- Re: IPv4 traffic on "ietf-v6ONLY" Brian E Carpenter
- Re: IPv4 traffic on "ietf-v6ONLY" Philip Homburg
- Re: IPv4 traffic on "ietf-v6ONLY" Alexandre Petrescu
- Re: IPv4 traffic on "ietf-v6ONLY" Mark Andrews
- Re: IPv4 traffic on "ietf-v6ONLY" james woodyatt
- Re: IPv4 traffic on "ietf-v6ONLY" Brian E Carpenter
- Re: IPv4 traffic on "ietf-v6ONLY" Brian E Carpenter
- Re: IPv4 traffic on "ietf-v6ONLY" David Farmer
- Re: IPv4 traffic on "ietf-v6ONLY" Brian E Carpenter
- Re: IPv4 traffic on "ietf-v6ONLY" Alexandre Petrescu
- Re: IPv4 traffic on "ietf-v6ONLY" Tim Chown
- Re: IPv4 traffic on "ietf-v6ONLY" Brian E Carpenter
- Re: IPv4 traffic on "ietf-v6ONLY" Rajiv Asati (rajiva)
- Re: IPv4 traffic on "ietf-v6ONLY" Markku Savela
- Re: IPv4 traffic on "ietf-v6ONLY" Markku Savela
- Re: IPv4 traffic on "ietf-v6ONLY" Erik Kline
- Re: IPv4 traffic on "ietf-v6ONLY" David Farmer
- Re: IPv4 traffic on "ietf-v6ONLY" Alexandre Petrescu
- Re: IPv4 traffic on "ietf-v6ONLY" Alexandre Petrescu
- Re: IPv4 traffic on "ietf-v6ONLY" Tim Chown
- Re: IPv4 traffic on "ietf-v6ONLY" Philip Homburg
- Re: IPv4 traffic on "ietf-v6ONLY" Mark Andrews
- Re: IPv4 traffic on "ietf-v6ONLY" Alexandre Petrescu
- Re: IPv4 traffic on "ietf-v6ONLY" joel jaeggli
- Re: IPv4 traffic on "ietf-v6ONLY" Brian E Carpenter
- Re: IPv4 traffic on "ietf-v6ONLY" Brian E Carpenter