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Companies using public IP space owned by others for internal routing

Subject: Companies using public IP space owned by others for internal routing
From: rgolodner at infratection.com (Richard)
Date: Sun, 17 Dec 2017 16:42:48 -0600
In-reply-to: <BLUPR15MB018000FE34FB7E8B8ECBBF93C8090@BLUPR15MB0180.namprd15.prod.outlook.com>
References: <BLUPR15MB018000FE34FB7E8B8ECBBF93C8090@BLUPR15MB0180.namprd15.prod.outlook.com>


On 12/17/2017 04:30 PM, Robert Webb wrote:
> Will anyone comment on the practice of large enterprises using non RFC1918 IP space that other entities are assigned by ARIN for internal routing?
>
> Just curious as to how wide spread this might be. I just heard of this happening with a large ISP and never really thought about it until now.
>
> Robert
>
>
 Â Â Â  It is more common than you would think. Why use public IP's when 
you can have many rfc1918 options. Always amazes me after the initial 
confusion.
 Â Â Â  Richard

Follow-Ups:
- Companies using public IP space owned by others for internal routing
  - From: m1enrage at gmail.com (Tom Carter)
- Companies using public IP space owned by others for internal routing
  - From: hmcgregor at biggeeks.org (Harry McGregor)

References:
- Companies using public IP space owned by others for internal routing
  - From: rwebb at ropeguru.com (Robert Webb)

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