View source for Ethernet interface name stuck to br0 or renaming ethernet interfaces

[[Main Page|Home]] > [[CentOS]] > [[CentOS 6.x]] > [[System troubleshooting]] > [[Ethernet interface name stuck to br0 or renaming ethernet interfaces]]

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=&lt;MAC address of ethernet interface&gt; 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 '<tt>/etc/udev/rules.d/70-persistent-net.rules</tt>'.  Hence first one would have to remove HWADDR line from ifcfg-br0, add it properly to ifcfg-eth0 and then remove incorrect lines from '<tt>/etc/udev/rules.d/70-persistent-net.rules</tt>'.  Then as suggested in [[Xen troubleshooting#Steps_to_solve_interface_MAC_stuck_to_FE:FF:FF:FF:FF:FF_problem_with_xen|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]]





[[Main Page|Home]] > [[CentOS]] > [[CentOS 6.x]] > [[System troubleshooting]] > [[Ethernet interface name stuck to br0 or renaming ethernet interfaces]]