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Re: [suse-security] Virtual IP

From: Kastus (NOSPAMtprfct.net)
Date: Fri Aug 05 2005 - 18:11:44 CDT


On Fri, Aug 05, 2005 at 02:38:12PM -0400, "Dubé, Michel" wrote:
> I'm a bit off topic, but I'm sure someone know the answer.

Yes, it's off-topic for security list.

>
> I am using SuSE 9.1, I modify manually the file
> /etc/sysconfig/network/ifcfg-eth-id-00:09:6b:ba:28:a0 to add this config:
>
> eth0:0 Link encap:Ethernet HWaddr 00:09:6B:BA:28:A0
> inet addr:192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0
> UP BROADCAST NOTRAILERS RUNNING MULTICAST MTU:1500 Metric:1
>
> Here is the file:
> BOOTPROTO='dhcp'
> MTU=''
> REMOTE_IPADDR=''
> STARTMODE='onboot'
> UNIQUE='oxTw.JIMl2CweY+3'
>
> IPADDR_0='192.168.1.100'
> NETMASK_0='255.255.255.0'
> BROADCAST_0='192.168.1.255'
> NETWORK_0='192.168.1.0'

You need to add line "LABEL_0='eth0:0'" if you want to see your
interface in ifconfig command.

>
>
> >ifconfig show:
>
> eth0 Link encap:Ethernet HWaddr 00:09:6B:BA:28:A0
> inet addr:XXX.XX.XX.135 Bcast:XXX.XX.XX.255 Mask:255.255.255.0
> inet6 addr: fe80::209:6bff:feba:28a0/64 Scope:Link
> UP BROADCAST NOTRAILERS RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:37863 errors:0 dropped:0 overruns:0 frame:0
> TX packets:3318 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:2821465 (2.6 Mb) TX bytes:343335 (335.2 Kb)
>
> lo Link encap:Local Loopback
> inet addr:127.0.0.1 Mask:255.0.0.0
> inet6 addr: ::1/128 Scope:Host
> UP LOOPBACK RUNNING MTU:16436 Metric:1
> RX packets:42 errors:0 dropped:0 overruns:0 frame:0
> TX packets:42 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:0
> RX bytes:2896 (2.8 Kb) TX bytes:2896 (2.8 Kb)

Absolutely correct. To see your alias use "ip addr show" command

>
> If I do the command manually ( >ifconfig eth0:0 192.168.1.100 netmask
> 255.255.255.0 broadcast 192.168.1.255), it's working fine until I reboot.
> I try to find the way to have it at boot time via the file
> ifcfg-eth-id-00:09:6b:ba:28:a0.
> It's suppose to work according to the documentation, so what's missing.

ifcfg(5):

       LABEL[suffix]
              Each address may be tagged with a label string. For details see
              manpage of ip

SUSE uses ip command to configure interfaces, not ifconfig.

>
> Thank's,

You are welcome.

>
> Michel.

-Kastus

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