LinuxSA Mailing list archives

  From: Alan Kennington <akenning@topology.org>
  To  : Adam Smith <adam.smith@sageautomation.com>
  Date: Sun, 13 May 2001 00:33:06 +0930

Re: IPv6 connectivity - how to get it?

On Sun, May 13, 2001 at 12:18:46AM +0930, Adam Smith wrote:
> 
> > And another question:
> > Is there anything out there in the IPv6 world which is worth 
> > connecting to?
> 
> You could always connect to my refrigerator, microwave and lawnmower.


Adam,

Don't they all use Bluetooth?
I thought that household appliances will be connected by
bluetooth piconets to IPv6 gateways.
Yeah, so I guess you could use NAT on your IPv6 gateway to
masquerade your applicances as IPv6 nodes.

It'll be a real hassle reading out your IPv6 address to people
over the phone though.

I've already got some IPv6 addresses on my SuSE 7.1 machine:

-------------------------------------------------------------
akenning@dog> ip address show
1: lo: <LOOPBACK,UP> mtu 3856 qdisc noqueue
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
    inet6 ::1/128 scope host
2: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 100
    link/ether 00:00:21:d4:4e:25 brd ff:ff:ff:ff:ff:ff
    inet 203.38.148.51/28 brd 203.38.148.63 scope global eth0
    inet6 fe80::200:21ff:fed4:4e25/10 scope link
    inet6 fe80::21d4:4e25/10 scope link
3: sit0@NONE: <NOARP> mtu 1480 qdisc noop
    link/sit 0.0.0.0 brd 0.0.0.0
16: ppp0: <POINTOPOINT,MULTICAST,NOARP,PROMISC,UP> mtu 1500 qdisc pfifo_fast qlen 3
    link/ppp
    inet 139.130.140.14 peer 139.130.140.1/32 scope global ppp0 
-------------------------------------------------------------

In fact, it looks like I've got my own subnets:

fe80::200:21ff:fed4:4e25/10
fe80::21d4:4e25/10

which bear a curious similarity to the ethernet address.
Already I get 2 nets of 2^118 nodes each.

Adn that raises a further question about where you go
to get your IPv6 allocation.
I think I'd like to start with a /108 subnet of about 1 million
addresses - to allow for future expansion.

By the way, I once worked out that there are 1000 IPv6 addresses
for every electron in every human being on earth.
That's probably down to about 950 by now, unless a lot of people
have lost a lot of weight recently.

This is going to make those Internode allocations of IPv4 /30
subnets look distinctly stingy!

Cheers,
Alan Kennington.

PS. Please redirect any flames to richard.alston@dcita.gov.au.

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