Network Manager Only Allows 1 connection only

fchan fchan at molsci.org
Tue Feb 24 00:35:13 UTC 2009


Hi,
I think you need to configure this in 
/etc/sysconfig/networking-scripts/. This is an excerpt of that 
directory when I do an ls -al of that directory and my primary device 
is ifcfg-eth1 and aliases are ifcfg-eth1:0 to ifcfg-eth1:6:

drwxr-xr-x  2 root root  4096 Jan 30 18:33 .
drwxr-xr-x 11 root root  4096 Feb 13 18:03 ..
-rw-r--r--  3 root root   274 Nov 11  2007 ifcfg-eth0
-rw-r--r--  3 root root   271 Nov 11  2007 ifcfg-eth1
-rw-r--r--  3 root root   237 Nov 11  2007 ifcfg-eth1:0
-rw-r--r--  3 root root   244 Nov 11  2007 ifcfg-eth1:1
-rw-r--r--  3 root root   239 Nov 11  2007 ifcfg-eth1:2
-rw-r--r--  3 root root   238 Nov 11  2007 ifcfg-eth1:3
-rw-r--r--  3 root root   239 Nov 11  2007 ifcfg-eth1:4
-rw-r--r--  3 root root   238 Nov 11  2007 ifcfg-eth1:5
-rw-r--r--  3 root root   238 Nov 11  2007 ifcfg-eth1:6
-rw-r--r--  3 root root   169 Nov 11  2007 ifcfg-eth2
And there are more files than these in this directory but have not 
included them here.

Here is what is inside ifcfg-eth1. Note: I have changed the HWADDR 
,DHCP_HOSTNAME and IPADDR so change this information for your network 
and device MAC address:
# Intel Corporation 82546EB Gigabit Ethernet Controller (Copper)
DEVICE=eth1
BOOTPROTO=none
HWADDR=f0:00:ab:34:55:01
ONBOOT=yes
DHCP_HOSTNAME=mailserver.network.com
TYPE=Ethernet
IPADDR=169.255.255.4.
NETMASK=255.255.255.0
GATEWAY=169.255.255.1
USERCTL=no
IPV6INIT=no
PEERDNS=yes

And this is what is inside the ifcfg-eth1:0. Again note I have 
changed DHCP_HOSTNAME and IPADDR so change this information for your 
network:
# Intel Corporation 82546EB Gigabit Ethernet Controller (Copper)
DEVICE=eth1:0
BOOTPROTO=none
DHCP_HOSTNAME=dnsserver.network.com
TYPE=Ethernet
IPADDR=169.255.255.5
NETMASK=255.255.255.0
GATEWAY=169.255.255.1
USERCTL=no
IPV6INIT=no
PEERDNS=yes

Others network aliases are similar to ifcfg-eth1:0 other than the 
DEVICE, DHCP_HOSTNAME and IPADDR changes with each aliases. Also note 
that the HWADDR is missing from the aliases files.
Here is a link I saw about this:
http://www.cyberciti.biz/faq/linux-creating-or-adding-new-network-alias-to-a-network-card-nic/

I hope this helps,
Frank

>all I want to do is add a second(static) ip (device alias 1) to my 
>interface in addition to the dhcp address all ready being procured .
>I can find no combinations of 'Network Manager' settings that allows 
>this to happen .
>If I plumb the interface manually after "Network Manager' is 
>finished initializing it works fine .
>If I turn off NM I get this in the log
>   "localhost nm-system-settings:    ifcfg-rh: Ignoring connection 
>'System eth0 ' and its device because NM_CONTROLLED was false."
>   "localhost nm-system-settings:    ifcfg-rh: Ignoring connection 
>'System eth0:1' and its device because NM_CONTROLLED was false."
>
>this should not be this difficult
>
>
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