[Chugalug] Need a CentOS Networking Buff...

William Roush william.roush at roushtech.net
Sat Mar 29 18:20:34 UTC 2014


Of course I'm going to answer it this, I want my Serverfault points!

William Roush
william.roush at roushtech.net
423-463-0592

http://www.roushtech.net/blog/


On 3/29/2014 2:19 PM, David White wrote:
> ... and Will gets the "Indirectly Answering the Question via 
> Serverfault" award!
>
> The solution to my problem: Rename the device / interface on the first 
> IP address from "eth0:0" TO "eth0", and then ensure the second device 
> is named "eth0:0". All along, my first interface was configured as 
> device name of "eth0:0" instead of "eth0"
>
> That was the root problem. After editing the file 
> /etc/sysconfig/network-scripts/ifconfig-eth0 so that the device name 
> was set to eth0 instead of eth0:0, and then ensuring the 2nd file was 
> setup properly (named ifcfg-eth0:0 with the same device name), 
> everything works
>
>
> On Sat, Mar 29, 2014 at 1:38 PM, David White <dwrudy at gmail.com 
> <mailto:dwrudy at gmail.com>> wrote:
>
>     Evidently my question is one for the ages, since no one on
>     ServerFault and anyone in Linode's IRC support channel has been
>     answered it (successfully), nor anyone on Freenode's #centos has
>     attempted to answer it.
>
>     I'm having trouble setting up a 2nd (virtual) interface on my
>     CentOS 6.x VPS. Everything works, except that whenever I reboot,
>     the 2nd IP address doesn't come up. However, simply running "ifup
>     eth0:0" after a reboot causes the 2nd IP to come up without an
>     issue. You can view how I have the interfaces configured on my
>     question on Server Fault from a couple days ago here:
>     http://serverfault.com/questions/584525/starting-a-virtual-network-interface
>
>     Since that question, the only changes I've made to the 2nd
>     interface (eth0:0)'s config file is: I took out the Gateway, I
>     took out the IPv6 stuff, and I took out the "Type" directive
>     ("Ethernet")
>
>     I've also tried, today, to rename both the file (ifcfg-eth0:1),
>     AND the interface defined within the file (DEVICE="eth0:1") to no
>     avail. On the 2nd, new, IP addy's config file, I've also tried
>     changing ONBOOT="yes" to ONPARENT="yes" which also hasn't worked.
>
>     What could I be missing?
>
>     -- 
>     David White
>     Founder & CEO
>     *
>     *
>     *Develop CENTS *
>     Computing, Equipping, Networking, Training & Supporting
>     Nonprofit Organizations Worldwide
>     http://developcents.com <http://developcents.com/>
>     423-693-4234 <tel:423-693-4234>
>
>
>
>
> -- 
> David White
> Founder & CEO
> *
> *
> *Develop CENTS *
> Computing, Equipping, Networking, Training & Supporting
> Nonprofit Organizations Worldwide
> http://developcents.com <http://developcents.com/>
> 423-693-4234
>
>
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