Problem with CentOS 6 configuring network
Dazed_75
lthielster at gmail.com
Thu Sep 22 22:17:22 MST 2011
Makes me wonder if someone somewhere set up a proxy for web access or some
wierd firewall rules and neglected to remove it. At first I thought you had
a connection to the router only but your later tests showed you truly DO
have access to the internet. Just maybe not certain kinds of access.
On Thu, Sep 22, 2011 at 9:25 PM, James Dugger <james.dugger at gmail.com>wrote:
> Bryan,
>
> From terminal I am able to ping the loopback, local machine, an iMac on my
> system, the router, 4.2.2.2, and news.google.com.
>
> Also when I put in the gateway address to the router in Firefox I can bring
> up the router admin page.
>
> So I don't think it is the braodcom card.
>
> I sent the following $ ping -c4 ip-address, and each time I get back
>
> 4 packets transmitted, 4 received, 0% packet loss, time (ranged from 29
> ms to 3034 ms)
>
> a typical line: " 64 bytes from 4.2.2.2: icmp_seq=1 ttl=58 time=30.5 ms "
>
> ???
>
>
> On Thu, Sep 22, 2011 at 8:20 PM, Bryan O'Neal <
> Bryan.ONeal at theonealandassociates.com> wrote:
>
>> Few things. 1) Disable IPv6. 2) try IP only connections. First try
>> pinging the loopback, then the address of the local box, the the
>> gateway, then another machine on the network then an external site,
>> like 4.2.2.2 Then try using a name like news.google.com. This will
>> tell you where things get mucked up.
>> Let us know the results and we can help further.
>>
>> On 9/22/11, Eric Shubert <ejs at shubes.net> wrote:
>> > 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 <
>> waclawski at mesacc.edu
>> >> <mailto:waclawski at 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" <james.dugger at gmail.com
>> >> <mailto:james.dugger at gmail.com>>
>> >> *To: *"PLUG-Discuss" <plug-discuss at lists.plug.phoenix.az.us
>> >> <mailto:plug-discuss at 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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>> --
>> Sent from my mobile device
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>
>
>
> --
> James
>
>
>
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--
Dazed_75 a.k.a. Larry
The spirit of resistance to government is so valuable on certain occasions,
that I wish it always to be kept alive.
- Thomas Jefferson
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