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RHEL 7.3 nic device naming

RHEL 7.3 Introduces a new version of systemd which handles devicenaming different than before.

After upgrading to RHEL 7.3 you might find you machine unreachable, an easy fix is to list the devices and change the name in the respective ifcfg-  file in /etc/sysconfig/network-scripts/

More information can be found be found in the release notes:

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7-Beta/html/7.3_Release_Notes/bug_fixes_general_updates.html

 

A fix for the problem above has been released, more information can be found here:

https://www.redhat.com/en/about/blog/red-hat-enterprise-linux-73-achieving-persistent-and-consistent-network-interface-naming-vmware-environments