On Wed, 2005-04-06 at 18:49 +1000, Anand Kumria wrote:
> On Sun, Apr 03, 2005 at 03:15:23PM +0200, Thomas Hood wrote:
> > # ip addr show ethp_0
> > 8: ethp_0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
> > link/ether 00:80:c7:ee:88:d6 brd ff:ff:ff:ff:ff:ff
> > inet 192.168.1.8/24 brd 192.168.1.255 scope link ethp_0
> ^^^^
> /
> That is a concern, that address -
> should really have global scope.
>
> Was this address alocated via zeroconf? If so, that is a grave failure
> and I would appreciate knowing more about your setup/configuration if
> possible.
That configuration was applied by ifupdown (iface <name> inet static)
followed by zeroconf run twice from the command line, IIRC. I am sure
that I didn't configure anything by hand (using ifconfig or ip).
Tonight I can perform that test again.
I am now at work where I connect the same machine using a Wi-Fi card.
Here is the log of an experiment. Note that when i run zeroconf the
first time it fails. It succeeds on the second attempt. The wifi0
interface can be ignored; the airo driver creates it as a duplicate of
eth0. I have ifrename set up to rename eth0 to wlanp_0. To begin with
zeroconf has _not_ been run since bootup.
[EMAIL PROTECTED]:~$ sudo ip addr show
1: lo: <LOOPBACK,UP> mtu 16436 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
12: wlanp_0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
link/ether 00:07:0e:b3:89:8e brd ff:ff:ff:ff:ff:ff
inet 130.161.177.123/26 brd 130.161.177.127 scope global wlanp_0
13: wifi0: <BROADCAST,MULTICAST> mtu 2312 qdisc noop qlen 100
link/ieee802.11 00:07:0e:b3:89:8e brd ff:ff:ff:ff:ff:ff
[EMAIL PROTECTED]:~$ sudo /usr/sbin/zeroconf -i wlanp_0
RTNETLINK answers: Cannot assign requested address
[EMAIL PROTECTED]:~$ sudo /usr/sbin/zeroconf -i wlanp_0
[EMAIL PROTECTED]:~$ sudo ip addr show
1: lo: <LOOPBACK,UP> mtu 16436 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
12: wlanp_0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
link/ether 00:07:0e:b3:89:8e brd ff:ff:ff:ff:ff:ff
inet 169.254.5.26/16 scope link wlanp_0
inet 130.161.177.123/26 brd 130.161.177.127 scope global wlanp_0
13: wifi0: <BROADCAST,MULTICAST> mtu 2312 qdisc noop qlen 100
link/ieee802.11 00:07:0e:b3:89:8e brd ff:ff:ff:ff:ff:ff
The 130.161 address is still global scope, which is good.
> Since the specification does note that IPv4LL and IPv4 global scope will
> be in use simultaneously and has merely a 'SHOULD NOT' prohibition (i.e.
> don't do it if you don't know what you are doing) I believe configuring
> zeroconf address via the if-up.d approach is correct.
OK
--
Thomas Hood <[EMAIL PROTECTED]>
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