nanog mailing list archives
Re: Looking for an IPv6 naysayer...
From: Ken A <ka () pacific net>
Date: Wed, 09 Feb 2011 15:36:31 -0600
On 2/9/2011 3:17 PM, George Bonser wrote:
Hmm, I am not aware of Comcast (or any other large MSO) doing any NAT on large scale. Having said that almost all of the DSL customers in the US are being NAT'ed, but on the edge device (DSL modem) rather than inthecore. -- Scott Helms Vice President of Technology ISP Alliance, Inc. DBA ZCorumHow many instances of 10/8 did they say they were running? I was behind a NAT when I had Comcast service. I am behind a NAT currently with my AT&T service. Note that the NAT was done on the "cable modem" in both cases and not further in to their network.
10/8 is the management network on my cable modem. The cable modem bridges your wan 'real' ip(s) through to your PC or router. At least that's how Suddenlink does it here. The customer is normally 'locked out' of the cable modem, unlike a dsl modem. The largest NATs are presumably w/mobile carriers. I've never been behind NAT (except one I controlled) on a consumer dsl or cable link in the US.
Ken That said, from my reading of some
industry large scale NAT devices (the A10 AX series is one which I am familiar with), they do things such as full cone NAT so it will still work with many applications that might break with conventional overload dynamic NAT.
-- Ken Anderson Pacific Internet - http://www.pacific.net
Current thread:
- Re: Looking for an IPv6 naysayer..., (continued)
- Re: Looking for an IPv6 naysayer... Franck Martin (Feb 09)
- RE: Looking for an IPv6 naysayer... George Bonser (Feb 09)
- Re: Looking for an IPv6 naysayer... Iljitsch van Beijnum (Feb 09)
- Re: Looking for an IPv6 naysayer... Jens Link (Feb 09)
- RE: Looking for an IPv6 naysayer... George Bonser (Feb 09)
- Re: Looking for an IPv6 naysayer... Scott Helms (Feb 09)
- RE: Looking for an IPv6 naysayer... George Bonser (Feb 09)
- Re: Looking for an IPv6 naysayer... Scott Helms (Feb 09)
- RE: Looking for an IPv6 naysayer... George Bonser (Feb 09)
- RE: Looking for an IPv6 naysayer... Frank Bulk (Feb 13)
- Re: Looking for an IPv6 naysayer... Ken A (Feb 09)
- Re: Looking for an IPv6 naysayer... Scott Helms (Feb 09)
- Re: Looking for an IPv6 naysayer... Jack Bates (Feb 09)
- Re: Looking for an IPv6 naysayer... Ken A (Feb 09)
- Re: Looking for an IPv6 naysayer... Stephen Davis (Feb 09)
- RE: Looking for an IPv6 naysayer... George Bonser (Feb 09)
- Re: Looking for an IPv6 naysayer... Josh Smith (Feb 09)
- RE: Looking for an IPv6 naysayer... George Bonser (Feb 09)
- Re: Looking for an IPv6 naysayer... Josh Smith (Feb 09)
- Re: Looking for an IPv6 naysayer... Owen DeLong (Feb 09)
- RE: Looking for an IPv6 naysayer... George Bonser (Feb 09)