Check for a typo where you got the 'et0', that's not a normal name (emX, ethX, pXpY and wlanX are the usual). As for a general comment/guide; make sure you've updated the /etc/sysconfig/network-scripts/ifcfg-X files (note the DEVICE="..." and HWADDR="..." lines). Here's a general guide for renaming devices under EL6 (inc. CentOS 6.3, which I rename NICs under often without trouble). digimer On 09/27/2012 01:19 AM, KNOPS Manfred wrote: > Hello, > > My name is Manfred. I have to install a flexlm license server on a pc with centos 6.3 as operating system. > This machine contains two network cards. An Ethernet card and a wifi card. > For the Ethernet card centos generates a device called p3p2. > For the wifi card centos generates a device called wlan0. > > In this configuration the flexlm license program called lmgrd only got the mac address of wlan0. > The vendor daemon got no mac address as host ID. > > Yesterday I made one test. Therefore I edited /etc/udev/rules.d/70-peristant-net.rules. This file contains only one line. This line defines how to name the device for the wifi card. I changed the name Option from name="wlan0" to name="eth0". After rebooting centos generates a device called /dev/et0. Both lmgrd and vendor daemon found the host ID. But lmgrd and safetech can't communicate together. > > As next I will try to rename /dev/p3p2 which is the device for the Ethernet card. I guess, if I can generate a device called /dev/eth0 for the Ethernet card the license server should work. But in /etc/udev/rules.d/70-persitant-net.rules is no rule for this device. > > How can I configure centos to generate /dev/eth0 for the Ethernet card? > > Mit freundlichen Grüßen / Best Regards / Cordialement, > > Manfred > > This email and any attachments are intended solely for the use of the individual or entity to whom it is addressed and may be confidential and/or privileged. > > If you are not one of the named recipients or have received this email in error, > > (i) you should not read, disclose, or copy it, > > (ii) please notify sender of your receipt by reply email and delete this email and all attachments, > > (iii) Dassault Systemes does not accept or assume any liability or responsibility for any use of or reliance on this email. > > For other languages, go to http://www.3ds.com/terms/email-disclaimer > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > -- Digimer Papers and Projects: https://alteeve.ca "Hydrogen is just a colourless, odorless gas which, if left alone in sufficient quantities for long periods of time, begins to think about itself."