Companies using public IP space owned by others for internal routing

Lee Howard lee at
Wed Dec 20 19:00:03 CST 2017

On 12/19/17, 11:52 PM, "NANOG on behalf of Mark Andrews"
<nanog-bounces at on behalf of marka at> wrote:

>> On 20 Dec 2017, at 2:39 am, Livingood, Jason
>><Jason_Livingood at> wrote:
>> On 12/18/17, 2:36 PM, "NANOG on behalf of Harald Koch"
>><nanog-bounces at on behalf of chk at> wrote:
>>> They could use IPv6. I mean, if the mobile phone companies can figure
>>>it out, surely an ISP can...
>> Except for cases when it is impossible or impractical to update
>>software on a great number of legacy devices…
>> JL
>You mean devices where the manufacture ignore IPv6 and shipped you a dud.
> Even devices with a 15 year life cycle should be IPv6 capable today.

“should” doesn’t buy developer cycles, especially for EOL products or from
bankrupt vendors.

You deal with the network you have, upgrade what you can, and replace the
rest as fast as you can while doing what it takes to stay in business.


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