Hi,
I don't have ifcfg-eth1 in my /etc/sysconfig/network-scripts. But when
I do ifconfig eth1 I can see output as below. If I do ifconfig eth12 ,
I don't see anything which i am assume is normal.
eth1 Link encap:Ethernet HWaddr 00:24:E8:44:DB:CC
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)
Interrupt:17 Memory:e8000000-e8012800
Don't know why and how this is happening.
Thanks!
Paras.
eth1 exists because the /dev device was found on boot (you have 2 or more network interfaces). eth12 does due to you not have 13+ nic's or did not map a network device to be eth12. On Wed, Oct 13, 2010 at 3:26 PM, Paras pradhan <pradhanparas at gmail.com>wrote:> Hi, > > I don't have ifcfg-eth1 in my /etc/sysconfig/network-scripts. But when > I do ifconfig eth1 I can see output as below. If I do ifconfig eth12 , > I don't see anything which i am assume is normal. > > > eth1 Link encap:Ethernet HWaddr 00:24:E8:44:DB:CC > 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) > Interrupt:17 Memory:e8000000-e8012800 > > > Don't know why and how this is happening. > > Thanks! > Paras. > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >-- Jacob Bresciani Linux Systems Administrator Advanced Ecommerce Research Systems / Terapeak Cell: 250 418-5412 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20101013/2c181921/attachment-0002.html>
I have eight nics as below [ppradhan at cvprd1 ~]$ ./lshw -short -class network WARNING: you should run this program as super-user. H/W path Device Class Description ==========================================================/0/100/4/0/0 eth4 network NetXtreme II BCM5708 Gigabit Ethernet /0/100/5/0/0 eth1 network NetXtreme II BCM5708 Gigabit Ethernet /0/100/9/0/0 eth6 network NetXtreme II BCM5708 Gigabit Ethernet /0/100/a/0/0 eth7 network NetXtreme II BCM5708 Gigabit Ethernet /0/100/c/0/2/0 __tmp1035166962 network 82575GB Gigabit Network Connection /0/100/c/0/2/0.1 eth5 network 82575GB Gigabit Network Connection /0/100/c/0/4/0 __tmp619132850 network 82575GB Gigabit Network Connection /0/100/c/0/4/0.1 __tmp1445504961 network 82575GB Gigabit Network Connection On that only eth4, eth6 and eth7 are configured ( or have ifcfg-eth4 , ifcfg-eth6 and ifcfg-eth7) . Wondering why there is eth1 and eth5 and also _tmp* Thanks! Paras. On Wed, Oct 13, 2010 at 5:33 PM, Jacob Bresciani <jacob at aers.ca> wrote:> eth1 exists because the /dev device was found on boot (you have 2 or more > network interfaces). > eth12 does due to you not have 13+ nic's or did not map a network device to > be eth12. > > On Wed, Oct 13, 2010 at 3:26 PM, Paras pradhan <pradhanparas at gmail.com> > wrote: >> >> Hi, >> >> I don't have ifcfg-eth1 in my /etc/sysconfig/network-scripts. But when >> I do ifconfig eth1 I can see output as below. If I do ifconfig eth12 , >> I don't see anything which i am assume is normal. >> >> >> eth1 ? ? ?Link encap:Ethernet ?HWaddr 00:24:E8:44:DB:CC >> ? ? ? ? ?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) >> ? ? ? ? ?Interrupt:17 Memory:e8000000-e8012800 >> >> >> Don't know why and how this is happening. >> >> Thanks! >> Paras. >> _______________________________________________ >> CentOS mailing list >> CentOS at centos.org >> http://lists.centos.org/mailman/listinfo/centos > > > > -- > Jacob Bresciani > Linux Systems Administrator > Advanced Ecommerce Research Systems / Terapeak > Cell: 250 418-5412 > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > >
On 10/13/10 3:26 PM, Paras pradhan wrote:> Hi, > > I don't have ifcfg-eth1 in my /etc/sysconfig/network-scripts. But when > I do ifconfig eth1 I can see output as below. If I do ifconfig eth12 , > I don't see anything which i am assume is normal. > > > eth1 Link encap:Ethernet HWaddr 00:24:E8:44:DB:CC > 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) > Interrupt:17 Memory:e8000000-e8012800 > > > Don't know why and how this is happening.Its unclear what your actual question is, but that behavior indicates that you have in fact an eth1 physical ethernet adapter but you haven't enabled or configured it (note there's no 'UP' or 'RUNNING' shown there). you probably do not have an eth12 interface, hence why that gave no output.
On 10/13/2010 5:26 PM, Paras pradhan wrote:> Hi, > > I don't have ifcfg-eth1 in my /etc/sysconfig/network-scripts. But when > I do ifconfig eth1 I can see output as below. If I do ifconfig eth12 , > I don't see anything which i am assume is normal. > > > eth1 Link encap:Ethernet HWaddr 00:24:E8:44:DB:CC > 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) > Interrupt:17 Memory:e8000000-e8012800 > > > Don't know why and how this is happening.The output of 'dmesg' should show some details about the device detected as eth1. -- Les Mikesell lesmikesell at gmail.com