extending at the edge

Henrik Lund Kramshøj hlk at kramse.org
Wed Oct 10 17:11:02 CEST 2012

On 10/10/2012, at 17.05, Tony Finch <dot at dotat.at> wrote:

> Nick Hilliard <nick at foobar.org> wrote:
>> On 10/10/2012 15:58, Tony Finch wrote:
>>> If I have a device with an IPv6 connection, how do I share that connection
>>> with other devices? With IPv4 I would use NAT. What is the answer for IPv6?
>> the expected edge configuration is that you get one or more /64 subnets
>> routed down to you.
> Is that true for cellular connections? IME with ethernet I have to share a
> /64 with other users' devices, so to share my connection I would either
> have to NAT or do layer 2 bridging. I guess wifi would be somewhat
> similar, though I wonder how well that would work with 802.1x.

Just because you were forced to do silly things in IPv4-land there is no reason to keep doing it.

The discussions I have seen have talked about giving out space like /56s to devices on cellular connections, and that
would allow easy sharing of (many) multiple subnets - of the recommended size /64

Lets hope the mobile networks do something like this and phone vendors provide the tools.

NAT is bad, do not use
bridging would be an ugly kludge 

Best regards


Henrik Lund Kramshøj, Follower of the Great Way of Unix
internet samurai cand.scient CISSP
hlk at kramse.org hlk at solidonetworks.com +45 2026 6000 
http://solidonetworks.com/ Network Security is a business enabler

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