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[rpd] IPv6 numbers and names

Lee Howard lee.howard at
Wed Nov 28 20:32:18 UTC 2018

On 11/28/18 3:19 PM, Willy MANGA wrote:
> Hi Jordi,
> Le 28/11/2018 à 20:49, JORDI PALET MARTINEZ a écrit :
>> Hi Willy,
>> [...]
>>      Again don't forget you have DNS on top of numbers. Even for the
>>      management of network itself. It should be very helpful here.
>>      Of course I do not take into account all possible use cases.
>> This will be in an ideal world, everybody using DNS for everything ... tell all the app and web developers, not all them follow the good practices ...
> I bet that this is one of the BIGGEST IPv6 excuse around me at least.
> Many people relies on numbers instead of Fully Qualified Domain Names :) .
> I think it will be better to explain now to layer 7 team to adopt DNS :
> scalabilty, resilience,...

Of course I agree with you that DNS and dynamic DNS make life easier. 
But I want to point out that there are lots of ways to make key IPv6 
addresses easier to remember. Once you're familiar with your address 
block, remembering 2001:db8:: is surely no harder than remembering 
192.0.2.  If infrastructure equipment is numbered from an early block, 
like 2001:db8:1::/48, then you just remember locations or individual 
hosts. Maybe your Bigcity region is #5 and name servers are always ::53 
so it's easy to remember:


      <my prefix> <infrastructure> <region> ... <host ID>

Lots of tricks like that make life easier for people who insist numbers 
are easier to type or remember than names. But nothing beats a good IPAM 
synchronized with DNS and DHCP.


> To AFRINIC capacity building team : watch carefully this excuse ;)
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