nanog mailing list archives
Re: CGNAT Solutions
From: Ca By <cb.list6 () gmail com>
Date: Wed, 29 Apr 2020 07:17:51 -0700
On Wed, Apr 29, 2020 at 1:06 AM Masataka Ohta < mohta () necom830 hpcl titech ac jp> wrote:
Brandon Martin wrote:If you mean getting rid of logging, not necessarily. It is enough if CPEs are statically allocated ranges of external port numbers.Yes, you can get rid of the logging by statically allocating ranges of port numbers to a particular customer.And, that was the original concern.What I was referring to, though, was the programmatic state tracking of the {external IP, external port}-{internal IP, internal port} mappings.OK.You can't eliminate that unless the CPE also knows what internal port range it's mapped to so that it restricts what range it uses. If you can do that, you can get rid of the programmatic state tracking entirely and just use static translations for TCP and UDP which, while nice, is impractical. You're about 95% of the way to LW4o6 or MAP at that point.Interesting. Then, if you can LW4o6 or MAP, you are about 95% of the way to E2ENAT with complete end to end transparency using IPv4 only, which means we don't need IPv6 with 4to6 NAT lacking the transparency. https://tools.ietf.org/html/draft-ohta-e2e-nat-00 Masataka Ohta
Since we are talking numbers ans hard facts 42% of usa accesses google on ipv6 https://www.google.com/intl/en/ipv6/statistics.html
Current thread:
- CGNAT Solutions John Alcock (Apr 28)
- Re: CGNAT Solutions Baldur Norddahl (Apr 28)
- RE: CGNAT Solutions Aaron Gould (Apr 28)
- Re: CGNAT Solutions William Herrin (Apr 28)
- Re: CGNAT Solutions Brandon Martin (Apr 28)
- Re: CGNAT Solutions Masataka Ohta (Apr 28)
- Re: CGNAT Solutions Brandon Martin (Apr 29)
- Re: CGNAT Solutions Masataka Ohta (Apr 29)
- Re: CGNAT Solutions Ca By (Apr 29)
- Re: CGNAT Solutions William Herrin (Apr 29)
- Message not available
- Re: CGNAT Solutions William Herrin (Apr 29)
- Re: CGNAT Solutions Brandon Martin (Apr 29)
- Re: CGNAT Solutions Ca By (Apr 29)
- Re: CGNAT Solutions JORDI PALET MARTINEZ via NANOG (Apr 29)
- Re: CGNAT Solutions Brandon Martin (Apr 28)
- Re: CGNAT Solutions Masataka Ohta (Apr 29)
- Re: CGNAT Solutions Ca By (Apr 29)
- Re: CGNAT Solutions Masataka Ohta (Apr 30)
- Re: CGNAT Solutions Robert Blayzor (Apr 29)
- Re: CGNAT Solutions Tarko Tikan (Apr 29)