ifup fails for static IP address. Is ifcfg wrong?

[Art Edwards]

I dug a little deeper and found that the ifcfg-eth0 in default had the wrong 
IP address--one that was actually in use. When I changed that value, all 
started to work. I really don't know why the ifcfg-eth0 script in 

/etc/sysconfig/networking/profiles/default

is different from that in

/etc/sysconfig/network-scripts.

In fact, I really don'tunderstand why there are two. Why not symbolic links?

Anyway, thanks for the response.

Art Edwards


On Mon, Jul 03, 2006 at 05:32:42PM -0500, Robert Nichols wrote:
> Art Edwards wrote:
> >I just installed Fedora core 5. I have a static IP address. When the 
> >system boots it tells me that this IP address is already in use. It then 
> >defaults to dhcp. I have looked at the /sbin/ifcfg code, where the error 
> >arises, and I find
> >the following:
> >
> >if ! arping -q -c 2 -w 3 -D -I $dev $ipaddr ; then
> >echo "Error: some host already uses address $ipaddr on $dev." 1>&2
> >exit 1
> >fi
> >
> >When I issue the same command (without the -q switch) with eth0 
> >substituted for $dev and my ipaddress substituted for $ipaddr, I receive 
> >no response. However, when I issue the same command with another ip 
> >address that I know is active, I receive an affirmative.
> >
> >I think that the code above is incorrect. Specifically, I think the ! 
> >(not) is wrong. 
> 
> No, that code is correct.  In a shell script, "if ! arping ..."
> does not mean "if arping returns 0".  It means "if the arping
> command fails", and "arping -D" gives a failure (i.e., non-zero)
> return code if it detects a reply.
> 
> I don't know why you're having a problem.  My FC5 test box is
> set up with a static IP address on its one and only ethernet
> interface, and that is working fine for me.
> 
>   [root at omega-3b ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
>   # Intel Corporation 82801DB PRO/100 VM (LOM) Ethernet Controller
>   DEVICE=eth0
>   BOOTPROTO=static
>   BROADCAST=192.168.43.255
>   HWADDR=00:0B:CD:98:7A:48
>   IPADDR=192.168.43.50
>   NETMASK=255.255.255.0
>   NETWORK=192.168.43.0
>   ONBOOT=yes
>   [root at omega-3b ~]#
> 
> -- 
> Bob Nichols         Yes, "NOSPAM" is really part of my email address.
> 
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