nanog mailing list archives

Re: AT&T Fiber Line / NOT MIS


From: Alex Conner via NANOG <nanog () nanog org>
Date: Thu, 10 Jun 2021 15:00:30 -0400

Yep; but even IP Passthrough, routed subnet, etc. all count as NAT sessions
against the internal NAT table.

BTW, that's the feature you're looking for - routed subnet. That will pass
your /26 to another network device over an RFC1918 subnet. The steps depend
on what particular gateway hardware they have, but a quick Google of the
gateway model and "routed subnet" should get you to the right spot.
Assuming of course the other service limitations aren't a dealbreaker.

On Thu, Jun 10, 2021 at 2:54 PM Dennis Burgess <dmburgess () linktechs net>
wrote:

Ya not wishing to do NAT...

Sent from mobile device..

------------------------------
*From:* Alex Conner <hello () codatory com>
*Sent:* Thursday, June 10, 2021 1:49:27 PM
*To:* TJ Trout <tj () pcguys us>
*Cc:* Dennis Burgess <dmburgess () linktechs net>; nanog () nanog org <
nanog () nanog org>
*Subject:* Re: AT&T Fiber Line / NOT MIS

Bonus points, the small business fiber has extremely limited NAT session
limits (depends on hardware, but not greater than 16,000 sessions) and
*everything *counts. Cold loading CNN.com (an AT&T company) in a default
config without an adblocker will use close to 3000, which will saturate and
cause errors on some of their gateway hardware (NVG595). If you want to use
it for any serious purpose, stick a tunnel out to a real connection.

On Thu, Jun 10, 2021 at 2:43 PM TJ Trout <tj () pcguys us> wrote:

Yeah not going to happen on U-verse

On Thu, Jun 10, 2021 at 11:32 AM Dennis Burgess <dmburgess () linktechs net>
wrote:

Guess their broadband stuff☹





*[image: LTI-Full_175px]*

*Dennis Burgess*


Author of "Learn RouterOS- Second Edition”

*Link Technologies, Inc* -- Mikrotik & WISP Support Services

*Office*: 314-735-0270  Website: http://www.linktechs.net

Create Wireless Coverage’s with www.towercoverage.com

Need MikroTik Cloud Management: https://cloud.linktechs.net



*From:* TJ Trout <tj () pcguys us>
*Sent:* Thursday, June 10, 2021 1:12 PM
*To:* Dennis Burgess <dmburgess () linktechs net>
*Cc:* nanog () nanog org
*Subject:* Re: AT&T Fiber Line / NOT MIS



call back, i dont think that's accurate. What is the specific product?



On Thu, Jun 10, 2021 at 7:25 AM Dennis Burgess <dmburgess () linktechs net>
wrote:

I have a ATT fiber line for a customer that has a 300/300 circuit, but its
not a MIS they are telling me we cannot route a /26 (they have allocated)
to my device behind it.  ☹  Any options?





*Dennis Burgess*


* Mikrotik : **Trainer, Network Associate, Routing Engineer, Wireless
Engineer, Traffic Control Engineer, Inter-Networking Engineer, Security
Engineer, Enterprise Wireless Engineer*

*Hurricane Electric: **IPv6 Sage Level*

*Cambium: **ePMP*



Author of "Learn RouterOS- Second Edition”

*Link Technologies, Inc* -- Mikrotik & WISP Support Services

*Office*: 314-735-0270  Website: http://www.linktechs.net

Create Wireless Coverage’s with www.towercoverage.com

Need MikroTik Cloud Management: https://cloud.linktechs.net

*How did we do today?*


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