Re: Problem with CentOS 6 configuring network

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Author: Eric Shubert
Date:  
To: plug-discuss
Subject: Re: Problem with CentOS 6 configuring network
Try a live Ubuntu 11.04? Might it have just bit the dust recently?

--
-Eric 'shubes'

On 09/22/2011 06:43 PM, James Dugger wrote:
> Phil,
>
> Yeah, I tried Firefox. it can't find google or any other outside URL.
> Going back through the screen response when bringing the networking
> back up it references the line -- Active connection path:
> /org/freedesktop/NetwokManager/ActiveConnection/2 state: activated --
>
> I tried to find this directory and can't get there as root as well.
> Don't know if it exists.
>
> I have just ran Ubuntu 11.04 on this system just yesterday without a
> networking problem. I have also run Fedora 15 on it was well -- no
> problems .. with network card. I loaded the live CD for Open SUSE 11.4
> and noticed in running the live CD it also did not give me access to the
> network. I wonder if there is a security setting or firewall setting
> that is effecting connection. All other computers have access to the
> router gateway and the internet.
>
> ???
>
> On Thu, Sep 22, 2011 at 6:02 PM, Phillip Waclawski <
> <mailto:waclawski@mesacc.edu>> wrote:
>
>     bizarre. Looking through that, it would appear you DO have an
>     internet connection. Have you tried firefox etc? My only guess is
>     that your access point is blocking something as what you've shown me
>     seems to indicate all good.
>     Phil W.

>
>     ------------------------------------------------------------------------
>     *From: *"James Dugger" <
>     <mailto:james.dugger@gmail.com>>
>     *To: *"PLUG-Discuss" <
>     <mailto:plug-discuss@lists.plug.phoenix.az.us>>
>     *Sent: *Thursday, September 22, 2011 5:57:04 PM
>     *Subject: *Problem with CentOS 6 configuring network

>
>
>     I have tried to install CentOS 6 on an older system.  When I get to
>     the prompt screen for the hostname of the computer there is a
>     configure network button at the bottom of the screen which is non
>     selectable.   After filling in the hostname for the machine the
>     configure network button is still unelectable.  Without being able
>     to select the button I continued and completed the installation of
>     the CentOS 6 on the system, but when done with installation I have
>     no internet connection.

>
>     I see the network connection icon in the upper right hand corner of
>     the status bar in Gnome, and when I right click edit connections, I
>     see Auto eth0 in the connections screen last used is never.  When I
>     highlight it and click edit I can see a MAC address listed.  in IPv4
>     and in IPv6 method is set to Automatic (DHCP).  Connect
>     Automatically box is checked  and it is available to all users.
>       Still no internet connection

>
>     ifconfig gives the following info:

>
>     eth0

>
>     Link encap:Ethernet HWaddr: 00:13:20:BF:DA:56
>     inet addr:192.168.0.103 Bcast:192.168.0.255 Mask:255.255.255.0
>     inet6 addr: fe88::213:20ff:febf:da56/64 Scope:Link
>     UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
>     RX packets:721 errors:0 dropped:0 overruns:0 frame:0
>     TX packets:222 errors:0 dropped:0 overruns:) carrier:0
>     collisions:0 txqueuelen:1000
>     RX bytes:59817 (58.4 KiB)  TX bytes:21873 (21.3 KiB)
>     Interrupt:16

>
>     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 Mertric:1
>     RX packets:12 errors:0 dropped:0 overruns:0 frame:0
>     TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
>     collisions:0 txqueuelen:0
>     RX bytes:720 (720.0 b) TX bytes:720 (720.0 b)

>
>     ------------

>
>     resolve.conf has the following:

>
>     # Generated by NetworkManager
>     nameserver 192.168.0.1

>
>     (the IP address listed in resolve.conf is my router's gateway address)

>
>     There was no ifcfg-eth0 file created in
>     /etc/sysconfig/netwroking/devices  so I created one and put the
>     following in it:

>
>     DEVICE=eth0
>     BOOTPROTO=none
>     HWADDR=00:13:20:BF:DA:56
>     ONBOOT=yes
>     TYPE=Ethernet
>     USERCTL=no
>     IPV6INIT=no
>     PEERDNS=yes
>     NETMASK=255.2555.255.0
>     IPADDR=192.168.0.10
>     GATEWAY=192.168.0.1

>
>     --------

>
>     after this I have brought eth0  down and back up using if down eth0
>     and ifup eth0

>
>     I get an OK on the following:

>
>     Shutting down loopback interface:
>     Bringing up loopback interface:
>     Bringing up interface Auto_eth0:  Active connection state: activating
>     Active connection path:
>     /org/freedesktop/NetwokManager/ActiveConnection/2 state: activated
>     Connection activated

>
>     Still no internet connection.  Please help, Thanks

>
>     --
>     James

>
>
>
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>
>
>
>
> --
> James
>
>



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