[Devil-linux-develop] Pronlem with handling /etc/mactab correctly

[Stefan E. <ma...@en...>]

Hi,

I finally found some time to test /etc/mactab a little bit more and I
discovered, that the handling of /etc/mactab is not working as expected.

See bug 82 for details and a possible patch.

In short:

Suppose you have the following interfaces, which the kernel assigns
during startup

eth0 -> MAC A
eth1 -> MAC B
eth2 -> MAC C

Now /etc/mactab defines

eth0 -> MAC C
eth1 -> MAC A
eth2 -> MAC B

But /sbin/nameif will fail, as eth0 cannot be assigned to MAC C because
eth2 already uses it.

To work around this problem, I reassigned eth0 to eth000 (just append
'00'). Then after every interface defined in /etc/mactab now reads
something like eth000, eth100, ... just let /sbin/nameif run without any
options. In this case nameif reads /etc/mactab and performs the correct
reassignment.

Regards,
Stefan