Why eth0 became enp6s0, first install Ubuntu?

Question

help please

_enp6s0    Link encap:Ethernet  HWaddr 18:67:b0:db:c8:a8  
          inet addr:192.168.1.9  Bcast:192.168.1.255  Mask:255.255.255.0
          UP 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)_

Solution

From v197 systemd/udev will assign names in new format according to location of the connector of the hardware due security reasons. There are also several Naming Schemes Hierarchy, for example by BIOS provided PCI Express hotplug slot index numbers, by interface's MAC address

Predictable Network Interface Names

You can view thous rules in:

vi /etc/udev/rules.d/70-persistent-net.rules

To migrate to old-style rules you use can this guide: How to change network interface names permanently in Linux

Comments

[Doug Smythies]

see here.