Timeline for IPv6 ULA vs. Global addresses for private (intra entity) peering
Current License: CC BY-SA 3.0
15 events
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| Feb 19, 2018 at 18:16 | comment | added | Ron Maupin♦ | Did any answer help you? If so, you should accept the answer so that the question doesn't keep popping up forever, looking for an answer. Alternatively, you can provide and accept your own answer. | |
| Sep 1, 2017 at 3:14 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Aug 2, 2017 at 2:33 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jul 3, 2017 at 2:04 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jun 3, 2017 at 1:13 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| May 4, 2017 at 0:32 | answer | added | Ron Maupin♦ | timeline score: 1 | |
| May 4, 2017 at 0:21 | comment | added | Ron Maupin♦ |
In fact, you can go directly to your RIR and get a much shorter IPv6 prefix (/44, /40 /36, /32, etc.) that is provider-independent. The RIR will actually reserve an even shorter prefix for you, just in case you need to expand in the future. The short prefix allows you to develop a proper addressing scheme, rather than needing to have multiple, separate /48 networks for each site.
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| May 4, 2017 at 0:00 | comment | added | Ron Maupin♦ |
You should use a /48 for each site. ISPs will not advertise any prefix longer than /48, and it is simple to get a /48 address for each site. You need to clear the whole IPv4 thinking out of your head. There is no address shortage with IPv6, and you can get far more addressing than you need today.
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| May 3, 2017 at 23:57 | comment | added | FORCED-INDUCTN | I had considered coding location into the address and I actually have a value for location and link-type in my ULA scheme. However we "only" have a /48 global allocation from our provider (CENIC). With a /48 I only have 4 characters to customize if I want to keep my prefixes SLAAC'able. In my organization the VLAN ID represents a lot of additional information in a convenient package, this is why I am trying to stick to a scheme where the VLAN ID can be used in the address. | |
| May 3, 2017 at 23:44 | comment | added | Ron Maupin♦ | You can use some of the bits to distinguish locations. You can search this site, and others, to find some sample IPv6 addressing schemes. It is smart to use the higher-order bits to determine the site. | |
| May 3, 2017 at 23:43 | history | edited | FORCED-INDUCTN | CC BY-SA 3.0 |
added 81 characters in body
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| May 3, 2017 at 23:42 | comment | added | FORCED-INDUCTN | Hello, thank you for the quick reply! Sorry for the confusion. I will encounter overlap if I use an addressing scheme where the VLAN is in the address and the VLAN is used in multiple locations and requires unique addressing. Example: If I use VLAN1000 for peering between a customer firewall and router, the address would be X:X:X:1000::0/128 and then use VLAN1000 for some customer servers, it would also be addressed with X:X:X:1000::0/64. Thankfully I have full control over all equipment (university environment) so coopartion from peers isn't' an issue because I am the peer :) | |
| May 3, 2017 at 23:36 | review | First posts | |||
| May 4, 2017 at 5:28 | |||||
| May 3, 2017 at 23:35 | comment | added | Ron Maupin♦ | How do you have overlap between Global IPv6 addressing? ULA addressing cannot be routed on the the Internet, so you would need the cooperation of the peers to use it for peering. The whole point of IPv6 is that the address space is large enough that you should never have any overlap. You probably need to rethink your addressing scheme. You should have plenty of bits. Studies have indicated that the average company readdresses three times when developing an IPv6 address scheme. | |
| May 3, 2017 at 23:31 | history | asked | FORCED-INDUCTN | CC BY-SA 3.0 |