nanog mailing list archives
Re: IPv6 Deployment for the LAN
From: Perry Lorier <perry () coders net>
Date: Thu, 22 Oct 2009 13:20:04 +1300
What it does deprive them of, with increasing layers of NAT or proxy service, is "dial-in" access. Many do not require this feature. The cost of providing it is increased support costs; debugging two networks and three or four protocols. Today, even debugging IPv4 problems with customers is problematic and costly enough.
The WAND Networking Research group did some measurements on the number of clients that accepted at least one incoming TCP connection from external to their network and presented their results at NZNOG 2009 ( http://www.wand.net.nz/~salcock/nznog09/spnat-nznog.pdf ). The number of people that successfully accepted at least one incoming TCP connection was somewhere from 30% to 44%. Most of it seemed to be from people using bittorrent, but about half was from other protocols.
I'm not so sure it's entirely obvious that people aren't accepting incoming TCP connections.
Current thread:
- Re: IPv6 Deployment for the LAN, (continued)
- Re: IPv6 Deployment for the LAN Steven Bellovin (Oct 18)
- Re: IPv6 Deployment for the LAN Ray Soucy (Oct 18)
- Re: IPv6 Deployment for the LAN trejrco (Oct 19)
- Re: IPv6 Deployment for the LAN Ron Broersma (Oct 19)
- Re: IPv6 Deployment for the LAN Ray Soucy (Oct 19)
- Re: IPv6 Deployment for the LAN Ray Soucy (Oct 18)
- Re: IPv6 Deployment for the LAN Steven Bellovin (Oct 18)
- Re: IPv6 Deployment for the LAN David W. Hankins (Oct 21)
- Re: IPv6 Deployment for the LAN Karl Auer (Oct 21)
- Re: IPv6 Deployment for the LAN David W. Hankins (Oct 22)
- Re: IPv6 Deployment for the LAN Karl Auer (Oct 22)
- Re: IPv6 Deployment for the LAN David W. Hankins (Oct 22)
- Re: IPv6 Deployment for the LAN Karl Auer (Oct 21)
- Re: IPv6 Deployment for the LAN Ray Soucy (Oct 22)
- Re: IPv6 Deployment for the LAN Iljitsch van Beijnum (Oct 21)
- Re: IPv6 Deployment for the LAN Ray Soucy (Oct 21)
- Re: IPv6 Deployment for the LAN Cord MacLeod (Oct 21)
- Re: IPv6 Deployment for the LAN Karl Auer (Oct 21)
- Re: IPv6 Deployment for the LAN Joe Maimon (Oct 22)
- Re: IPv6 Deployment for the LAN Owen DeLong (Oct 22)