Ethernet interface name stuck to br0 or renaming ethernet interfaces

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If while configuring bridge as explained in Creating bride interfaces (br0) for virtual hosts to use shared interface base machines ethernet interface name starts getting stuck to br0/br1 etc. instead of eth0/eth1. Then the problem is in ifcfg-br0 file where HWADDR=<MAC address of ethernet interface> has been left by accident. To solve this problem simple changes to ifcfg-files may not be enough as the configuration lines make their way to '/etc/udev/rules.d/70-persistent-net.rules'. Hence first one would have to remove HWADDR line from ifcfg-br0, add it properly to ifcfg-eth0 and then remove incorrect lines from '/etc/udev/rules.d/70-persistent-net.rules'. Then as suggested in Xen troubleshooting it could be worth it to poweroff the machine for about 30 seconds instead of just rebooting it.


Note that for Ethernet interfaces named __tmpXXXXX there is separate note at Ethernet devices named __tmpXXXXX



Home > CentOS > CentOS 6.x > System troubleshooting > Ethernet interface name stuck to br0 or renaming ethernet interfaces

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