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Date: Fri, 25 Apr 2014 16:04:17 +0400
From: Stanislav Kholmanskikh <stanislav.kholmanskikh@oracle.com>
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Subject: Re: [LTP] [PATCH] ip_tests.sh: don't use hardcoded eth0
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To: Mike Frysinger <vapier@gentoo.org>, ltp-list@lists.sourceforge.net, "x >> \"XU.SIMON\"" <xu.simon@oracle.com>

Hi!

On 03/28/2014 09:08 AM, Mike Frysinger wrote:
> On Fri 28 Mar 2014 09:44:24 Simon Xu wrote:
>> The script uses hardcoded 'eth0' which used to work on most systems.
>> This fix tries to find a 'working' network interface using the hostname.
>
> why doesn't hardcoding "lo" work ?
> -mike

I think we can't use the loopback interface because test06 fails if 
invoked with lo:

[root@kholmanskikh stas]# /sbin/ifconfig lo:1 1.2.3.4 netmask 
255.255.255.0 up
[root@kholmanskikh stas]# /sbin/ip maddr add 66:66:00:00:00:66 dev lo:1
ioctl: Invalid argument

[root@kholmanskikh stas]# /sbin/ifconfig eth0:1 3.4.5.6 netmask 
255.255.255.0 up
[root@kholmanskikh stas]# /sbin/ip maddr add 66:66:00:00:00:66 dev eth0:1
[root@kholmanskikh stas]#

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