I pressed the tab "probe" by mistake near "bind to MAC address" in system->administration->network->edit->hardware device. After this the MAC address disappeared. Internet is not working. Shall I write the MAC address and activate again? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20110122/b784ac29/attachment-0002.html>
On Sat, Jan 22, 2011 at 1:29 AM, Ritika Garg <ritikagarg25 at gmail.com> wrote:> I pressed the tab "probe" by mistake near "bind to MAC address" in > system->administration->network->edit->hardware device. After this the MAC > address disappeared. Internet is not working. Shall I write the MAC address > and activate again?That will *probably* work. But NetworkManager and its utilities are *NOT* your friend. Learn to directly edit /etc/sysconfig/network-scripts/ifcfg-* files. You will find features that NetworkManager does not support, at least in RHEL 5, such as setting the "SEARCH=" option for DHCP configurations or pair-bonding or setting up network bridges for KVM use. And you can handle backups much more consistently.
I gave '/sbin/ifconfig | grep HWaddr' to get the MAC address but its not returning anything. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20110124/aa06be99/attachment-0002.html>
On Sun, Jan 23, 2011 at 9:39 PM, Ritika Garg <ritikagarg25 at gmail.com> wrote:> I gave '/sbin/ifconfig | grep HWaddr' to get the MAC address but its not > returning anything. >Have you just tried running ifconfig? You may need to specify about which interface you are inquiring, or use '-a' to get them all. Try ifconfig -a | more to see what I mean, contrasted to just ifconfig.
On Mon, Jan 24, 2011 at 12:39 AM, Ritika Garg <ritikagarg25 at gmail.com> wrote:> I gave '/sbin/ifconfig | grep HWaddr' to get the MAC address but its not > returning anything.That will only show active network ports. Try "/sbin/ifconfig -a".
'/sbin/ifconfig -a' returns:
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU :16436 Metric:1
RX packets:1489 errors:0 dropped:0 overruns:0 frame:0
TX packets:1489 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2499880 (2.3 MiB) TX bytes:2499880 (2.3 MiB)
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