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Re: [Anima] Is this how BRSKI/IPIP works?

Brian E Carpenter <brian.e.carpenter@gmail.com> Mon, 17 July 2017 07:28 UTC

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From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
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Date: Mon, 17 Jul 2017 19:28:05 +1200
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Subject: Re: [Anima] Is this how BRSKI/IPIP works?
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On 17/07/2017 18:54, Eliot Lear wrote:
> On the other hand, maybe it's fundamental, but is relying on LL in this
> architecture to go beyond LL boundaries the right thing to do?

What it would do is prolong the link, virtually, up to a dedicated virtual
interface in the registrar. So I think it's safe, if unconventional.

    Brian
> 
> 
> On 7/17/17 8:34 AM, Michael Richardson wrote:
>> Toerless Eckert <tte@cs.fau.de> wrote:
>>     > I thought i had asked that question already but not sure, and not seen
>>     > an answer: - I have never seen that a device has more than one
>>     > link-local addr on an interface.  Is this permitted by IPv6 arck ? Can
>>     > you configure this in eg: Linux. I thought i tried on linux/cisco-ios
>>     > in the past and i do not quite remember, but i think it failed (only
>>     > one address).
>>
>> dooku-[~](2.3.0) mcr 10879 %sudo ip -6 addr add fe80::1234/64 dev wlan0
>>
>> dooku-[~](2.3.0) mcr 10788 %ifconfig wlan0
>> wlan0     Link encap:Ethernet  HWaddr 08:11:96:01:81:e0
>>           inet addr:31.133.129.16  Bcast:31.133.143.255  Mask:255.255.240.0
>>           inet6 addr: fe80::1234/64 Scope:Link
>>           inet6 addr: fe80::a11:96ff:fe01:81e0/64 Scope:Link
>>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>>
>> dooku-[~](2.3.0) mcr 10788 %ip -6 addr ls dev wlan0
>> 3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
>>     inet6 fe80::1234/64 scope link
>>        valid_lft forever preferred_lft forever
>>     inet6 fe80::a11:96ff:fe01:81e0/64 scope link
>>        valid_lft forever preferred_lft forever
>>
>>
>> --
>> ]               Never tell me the odds!                 | ipv6 mesh networks [
>> ]   Michael Richardson, Sandelman Software Works        | network architect  [
>> ]     mcr@sandelman.ca  http://www.sandelman.ca/        |   ruby on rails    [
>>
>>
>> --
>> Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works
>>  -= IPv6 IoT consulting =-
>>
>>
>>
>>
>>
>> _______________________________________________
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> 
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