[MLB-WIRELESS] National IP allocation and routing sche me??

Simon J Mudd sjmudd at pobox.com
Tue May 21 17:07:10 EST 2002


random at sectoid.org ("Random") writes:

> I thought I'd throw my 2c in here, I've been in a few similar
> discussions with others about ip's also for a short while I played with
> the idea of being freenetworks ip friendly (ie, using a small bunch of
> ip's that doesn't conflict worldwide). Modeling wireless networks on the
> Internet is a very good thing for many reasons, but one of them should
> not involve dividing up 10.* (and or 192.*, etc) to use worldwide. With
> all the current trouble with IPv4 especialy!

this is because of the "perceived or real" difficulties in getting
public addresses.  If I could ask RIPE tomorrow for a range of
addresses for MadridWireless or RedLibre in Spain I would.  I think
that various factors would make these addresses difficult to obtain.

The "solution" of using RFC1918 addresses is IMO the best compromise available.

> But anyway, there definatly should be consistency in Australia at least,
> personally as I have said before on syd-wire I don't see any advantage
> using more than just 10.*, I don't see any use in using 172*/192* for ap
> communications and such. If you want 10.x can be logically divided so
> that you know exactly what is a client, and what is an ap/node, but also
> more importantly as EB just said, route summarisation is critically
> important, especially when you start to envision the complex routing we
> _will_ be dealing with, a semi-mesh network as this is can quickly
> become a routing nightmare, unless initial thought is put into it.

Fine. Using 10.* for both client subnets and AP interlinks is fine.
It's just visually easier to see things if you use a different network
number.  Technically you are right: there is no difference between the two.

> Nb, someone mentioned possibility of filtering client -> client comms, I
> hope you relise that half the purpose of these wireless networks is
> client->client comms! ;)

I do, yes.

> I've posted various detailed idea's on how to overcome these issues, and
> how ip's could be efficiently allocated, have a look in the syd-wire
> mailing list archive to see. (middle last month)

It's a real shame there is no global wireless mailing list to discuss
these issues. I'm subscribed to 3 different Spanish wireless lists and
countless other mailing lists or other subjects.  I'm sure a lot of
people worldwide aren't aware of some of the things you guys are
discussing, and these are things which really affect them too to some
extent.

I don't know whether seattlewireless, o nycwireless have active
mailing lists but a global list would help solve many global problems
which need to be solved.  The local problems become much simpler
thereafter.

Simon
--
Simon J Mudd,   Tel: +34-91-408 4878,  Mobile: +34-605-085 219
Madrid, Spain.  email: sjmudd at pobox.com,  Postfix RPM Packager

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