Network problem in SL 6.6
Hi all,
I downloaded Scientific Linux 6.6, but it didn't connect to internet. There is a wrong sign on the "internet icon" on the start up bar and when I click on this icon i find the wired connection closed (I can't click on), also the cable connected to the laptop dose not flash. When I enter > system > network connections, I find wired system eth0 connection, in which the MAC address set to 00:00:00:00:00:00, while "Apply" icon is not activated Here is the output of $ifconfig 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:65536 Metric:1 RX packets:40 errors:0 dropped:0 overruns:0 frame:0 TX packets:40 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:2880 (2.8 KiB) TX bytes:2880 (2.8 KiB) virbr0 Link encap:Ethernet HWaddr 52:54:00:EE:44:CD inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) Here is the output of $ifconfig eth0 eth0 Link encap:Ethernet HWaddr 00:00:00:00:00:00 BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) The eth0 cofiguration file on /etc/sysconfig/network-scripts/ifcfg-eth0 TYPE=Ethernet UUID=48b4edd8-26a9-427e-abad-b4acac8e42ee ONBOOT=yes NM_CONTROLLED=yes BOOTPROTO=dhcp DEFROUTE=yes IPV4_FAILURE_FATAL=yes IPV6INIT=no NAME="System eth0" HWADDR=52:54:00:EE:44:CD PEERDNS=yes PEERROUTES=yes And when I type ifup eth0 [root@localhost network-scripts]# ifup eth0 Error: No suitable device found: no device found for connection 'System eth0' Note that when I change the MAC address on system> network connections > system eth0 to : 52:54:00:EE:44:CD, the Apply icon activated but the problem didn't solved .. So any help .. thanx S. |
Why do you have a Virtual Bridge configured? Looking at your output both the virbr0 and eth0 have the same mac address.
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I don't know why.. I just installed Linux normally, also i wonder why the HWaddr number in ifcfg-eth0 file is different than when i type ifconfig eth0?
Any ideas, because actually I'm not expert in SC Linux.. Best, S. |
post the output of the following command:
Code:
ifconfig -a |
Here is it:
$ifconfig -a eth0 Link encap:Ethernet HWaddr 00:00:00:00:00:00 BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) 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:65536 Metric:1 RX packets:28 errors:0 dropped:0 overruns:0 frame:0 TX packets:28 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:1920 (1.8 KiB) TX bytes:1920 (1.8 KiB) pan0 Link encap:Ethernet HWaddr 92:61:35: D6:73:04 BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) virbr0 Link encap:Ethernet HWaddr 52:54:00:EE:44:CD inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) virbr0-nic Link encap:Ethernet HWaddr 52:54:00:EE:44:CD BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:500 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) Best, S. |
What config files do you have in /etc/sysconfig/network-scripts/? Can you post this output also?
Code:
ls -al |
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