Problem with CentOS 6 configuring network
James Dugger
james.dugger at gmail.com
Thu Sep 22 21:25:43 MST 2011
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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> >>
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> >>
> >>
> >>
> >> --
> >> James
> >>
> >>
> >
> >
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>
> --
> Sent from my mobile device
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--
James
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