nanog mailing list archives
Re: Verizon DSL moving to CGN
From: Rob Seastrom <rs () seastrom com>
Date: Sun, 07 Apr 2013 08:39:16 -0400
Jimmy Hess <mysidia () gmail com> writes:
On 4/6/13, Matthew Kaufman <matthew () matthew at> wrote:On 4/6/2013 6:24 PM, cb.list6 wrote: I'd love to see a CGN box that is cheaper than IPv4 addresses currently are on the transfer market.You mean like a few linux servers running iptables nat-masquerade? You think the "Carrier Grade" in "Carrier Grade NAT" isn't just a rhetorically constructed distraction, from the fact that simple NAT may be implemented, and yeah, end users are certain to experience annoyances, either way...
Forget about the "annoying users" part; the "carrier-grade" part of CGN is all about not annoying the service provider. As far as I'm aware, iptables does not include deterministic port translation based on source address, nor easy-to-configure hooks for CALEA [*]. It may well turn out that once one factors in support your costs are higher with large scale NAT-on-Linux than if you'd sucked it up and coughed up a quarter mil for an appliance. -r [*] I'd love to hear that I'm wrong on this count, but a how-to document that explains how one can lovingly handcraft such a thing as opposed to a special refactored distro that's ready to plug-and-chug appliance style will only serve to reinforce my assertion.
Current thread:
- Re: Verizon DSL moving to CGN, (continued)
- Re: Verizon DSL moving to CGN Owen DeLong (Apr 08)
- Re: Verizon DSL moving to CGN Rajiv Asati (rajiva) (Apr 08)
- Re: Verizon DSL moving to CGN Christopher Morrow (Apr 08)
- Re: Verizon DSL moving to CGN Randy Bush (Apr 07)
- Re: Verizon DSL moving to CGN Rajiv Asati (rajiva) (Apr 07)
- Re: Verizon DSL moving to CGN Jay Ashworth (Apr 07)
- Re: Verizon DSL moving to CGN Matthew Kaufman (Apr 06)
- Re: Verizon DSL moving to CGN Mikael Abrahamsson (Apr 06)
- Re: Verizon DSL moving to CGN Tore Anderson (Apr 07)
- Re: Verizon DSL moving to CGN Jimmy Hess (Apr 06)
- Re: Verizon DSL moving to CGN Rob Seastrom (Apr 07)
- Re: Verizon DSL moving to CGN Mikael Abrahamsson (Apr 06)
- Re: Verizon DSL moving to CGN Jay Ashworth (Apr 06)
- Re: Verizon DSL moving to CGN Alex (Apr 07)
- Re: Verizon DSL moving to CGN Valdis . Kletnieks (Apr 07)
- Re: Verizon DSL moving to CGN Alex (Apr 07)
- RE: Verizon DSL moving to CGN Staudinger, Malcolm (Apr 08)
- Re: Verizon DSL moving to CGN kpospisek (Apr 09)