(usagi-users 01003) Re: Scoped Addresses

[Bernd Walter <ipv6@xxxxxxxxx>]

On Mon, Nov 12, 2001 at 12:23:32PM +0100, Juan Antonio wrote:
> 	There are any way to use telnet and ftp applications without telling them
> the interface when I use Link Local Address, in other words:
> 
> 	instead of: telnet fe80::xxxx:xxxx:xxxx:xxxx%eth0
> 	only use: telnet fe80::xxxx:xxxx:xxxx:xxxx
> 
> the problem is that I can't use symbolic names of this hosts (configured in
> etc/hosts).
> 
> 	Could any body explain me why is necessary to indicate the interface only
> in Link Local Addresses?

That way you can have more that a single interface directly connected
to a target machine.
You need this control for some protocols such as router solicitation.
Other addresses are not link local and therefor can be routed to the
target machine.

Why do you want to have resolving for link local addresses?
Usually you would use fec0:: or full qualified addresses.

If you really need link local for administrative purpose you can always
lookup via ff02::1.

On a FreeBSD:
ticso@cicely6# ping6 -I de0 -c 2 -w ff02::1
PING6(72=40+8+24 bytes) fe80::200:92ff:fea7:1340%de0 --> ff02::1
39 bytes from fe80::200:92ff:fea7:1340%de0: cicely6.cicely.de.
39 bytes from fe80::200:92ff:fe9b:3151%de0: cicely7.cicely.de.
40 bytes from fe80::a00:20ff:fe1d:9093%de0: cicely20.cicely.de.
40 bytes from fe80::a00:20ff:fe1d:8341%de0: cicely21.cicely.de.
40 bytes from fe80::a00:20ff:fe00:72a9%de0: cicely41.cicely.de.
40 bytes from fe80::200:92ff:fe90:7f26%de0: cicely10.cicely.de.
39 bytes from fe80::200:92ff:fea7:1340%de0: cicely6.cicely.de.

--- ff02::1 ping6 statistics ---
2 packets transmitted, 2 packets received, +5 duplicates, 0% packet loss

-- 
B.Walter              COSMO-Project         http://www.cosmo-project.de
ticso@xxxxxxxxx         Usergroup           info@xxxxxxxxxxxxxxxx