[Linux-users] 2 IP's on the same network card

[Dirk Moolman]

-----Original Message-----
From: linux-users-bounces at pananix.com
[mailto:linux-users-bounces at pananix.com] On Behalf Of Bill Campbell
Sent: 28 August 2007 04:32 PM
To: linux-users at linux-sxs.org
Subject: Re: [Linux-users] 2 IP's on the same network card

On Tue, Aug 28, 2007, Dirk Moolman wrote:
>>
>>
>>>On Tue, Aug 28, 2007, Dirk Moolman wrote:
>>>>Just a question - how do I make a network setting, like the eth0:1
>>that
>>>>I created below, permanent ? .... so that it stays when I reboot the
>>>>server
>>
>>
>>>The SuSE way to do this is ``yast2 lan'', edit the interface, go
>>>to the Advanced tab, and create an alias.
>>
>>On one of my existing servers (installed by someone else before my
>>time), there are interfaces eth0, and also eth0:1   - the latter is
not
>>defined as an alias.


>If it's a SuSE system newer than 9.0 Pro any eth0:x interface has
>been created manually, not with yast2.
>
>The applicable scripts are under /etc/sysconfig/network with
>names related to the Mac address(es) of the NICs.  Aliases appear
>in these files as lines like this for the alias guardian.
>
>IPADDR_guardian='192.136.111.16'
>NETMASK_guardian='255.255.255.0'


On my system, this is how the aliases get added.  I added the alias in
yast, and then confirmed in /etc/sysconfig/network that the alias was
added to the ifcfg_<mac_address> file.

I can manually remove it there, and then it also gets removed in yast.

The aliases just don't show in the ifconfig output, which could cause
trouble for me in future. I find it better (for myself) to keep things
as simple as possible. If I can find a way to let it show in ifconfig,
then I've made my life easier for future troubleshooting.


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