Mailinglist Archive: opensuse (888 mails)

["Carlos E. R." <robin.listas@xxxxxxxxxxxxxx>]

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Resending, lets see if Telefonica behaves properly now.

On 2011-01-06 18:46, Per Jessen wrote:
> Carlos E. R. wrote:

> > But it is a terrible format!
>
> Yes, it is unusual having an IP-address in the URL, normally it would be
> a name, but the %ethX extension doesn't work with a name (as far as I
> have seen).  Btw, the FE80::21E:BFF:FE08:4CCB%eth0 format also works
> with e.g. ssh and telnet.  It is handled by the getaddrinfo() function.
> I suspect there must be a way of specifying a name plus devicename, but
> I haven't found it yet.

I meant terrible compared to an IPv4 numerical address. There is no need
for brackets nor for the interface.


> > Having to add a 6 to the ping, specify the interface in pings or web
> > browsing... Perhaps it is a question of routing tables :-?
>
> It is a problem specific to link-local addresses - if you were to use
> global unicast addresses, i.e. "plain" IPv6 addresses, there is no
> problem.  If you can assign your own IPv6 addresses to the printer, you
> could try using the fec0 prefix - it's deprecated, but was meant to be
> site-local.

Well, I certainly want local-only addresses, not global addresses. I read
somewhere that old v4 addresses could be mapped to new v6 addresses. Some
prefix, then the old 192.168...

(I need a good read on all this...)


> > What would happen if I modify my bind dns configuration in an
> > unfathomable way, so that the returned address for the printer is the
> > v6 one instead of the v4 one, would I have to write the port too?
> > That's absurd. It is, isn't it?
>
> If you change the A record and make it an AAAA instead with a proper
> IPv6 address, it'll work just fine.  I tried it with a link-local
> address, and I couldn't get it to work with the %ethX notation.

No, I don't want to put the eth part :-)

So add an AAAA record. But also add the reverse file somehow, too.

> > And where from did the printer get that address? I did not configure
> > it, it was HP, the manufacturer. Perhaps I should configure instead
> > the equivalent v6 address to the v4 addr.
>
> It's automatically configured; the fe80 prefix means "link-local", the
> rest is an encoding of MAC-address of the interface.

Ahh! I see.


And I don't need routing tables, because we write the eth0 port in the
address given to firefox. If I would be using names, how would the routing
know on which ether port is that MAC address? Routing tables are done by
prefixes common to many machines. Unless the operating system does
discovery and automatic routing...


> > Is there an IPv6 manual for dummies?
>
> I'm sure there are many good books out there, but I can't recommend
> anyone specific.  Sofar I've managed with a couple good wikipedia
> articles and googling a lot.

I'm more lazy than that, I would prefer a book in paper, or a  really good,
simple, web page. :-)

- -- 
Cheers / Saludos,

                Carlos E. R.
                (from 11.2 x86_64 "Emerald" at Telcontar)
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