• Ubuntu OS에서 network 장치의 이름을 rename하며 정리한 노트
  • 꼭 수정할 필요없으며 기본값 사용 권장 (Update: Aug 26, 2021)

환경 구성

  • OS: Ubuntu 16, 18
  • VM: VMware vsphere 6.7 UP3

1. OS 설치 후 자동으로 인식된 네트웍 장치

USER1@UBUNTU16:~$ ifconfig -a
ens160    Link encap:Ethernet  HWaddr 12:3c:29:33:ec:df  
          inet addr:192.168.0.33  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::123:29ff:fe33:ecdf/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:57 errors:0 dropped:0 overruns:0 frame:0
          TX packets:71 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:6868 (6.8 KB)  TX bytes:10964 (10.9 KB)


USER1@UBUNTU16:~$ dmesg |grep -i net
(...생략...)
[    1.134069] FUJITSU Extended Socket Network Device Driver - version 1.0 - Copyright (c)   2015 FUJITSU LIMITED
[    1.153441] VMware vmxnet3 virtual NIC driver - version 1.4.14.0-k-NAPI
[    1.153572] vmxnet3 0000:03:00.0: # of Tx queues : 4, # of Rx queues : 4
[    1.154562] vmxnet3 0000:03:00.0 eth0: NIC Link is Up 10000 Mbps
[    1.179238] vmxnet3 0000:03:00.0 ens160: renamed from eth0
[    2.604768] SELinux:  Unregistering netfilter hooks
[    2.808421] systemd[1]: Reached target Network (Pre).
[    3.251979] vmxnet3 0000:03:00.0 ens160: intr type 3, mode 0, 5 vectors allocated
[    3.252730] vmxnet3 0000:03:00.0 ens160: NIC Link is Up 10000 Mbps
(...생략...)

2. network interface 이름 수정

2-1. grub 및 network 설정 파일 수정으로 이름 변경

USER1@UBUNTU16:~$ sudo vi /etc/default/grub
(...생략...)
GRUB_DEFAULT=0
#GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=2
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="security=selinux selinux=1"
#GRUB_CMDLINE_LINUX=""
GRUB_CMDLINE_LINUX="net.ifnames=0 biosdevname=0"
(...생략...)

USER1@UBUNTU16:~$ sudo grub-mkconfig -o /boot/grub/grub.cfg

USER1@UBUNTU16:~$ sudo vi /etc/network/interfaces

USER1@UBUNTU16:~$ sudo reboot

2-2. udev 네트웍 장치 rules 수정 방법

; Ubuntu 16, 18 설정 파일 내용이 약간 다르지만 수정 부분은 같음

USER1@UBUNTU16:~$ sudo vi /lib/udev/rules.d/73-usb-net-by-mac.rules
(...생략...)
IMPORT{cmdline}="net.ifnames"
ENV{net.ifnames}=="0", GOTO="usb_net_by_mac_end"

ACTION=="add", SUBSYSTEM=="net", SUBSYSTEMS=="usb", NAME=="", \
    ATTR{address}=="?[014589cd]:*", \
    TEST!="/etc/udev/rules.d/80-net-setup-link.rules", \
    #IMPORT{builtin}="net_id", NAME="$env{ID_NET_NAME_MAC}"
    IMPORT{builtin}="net_id", NAME="eth0"
    # NAME= 부분을 수정한다

LABEL="usb_net_by_mac_end"

;network 설정 파일도 같은 이름으로 수정

USER1@UBUNTU16:~$ sudo vi /etc/network/interfaces
(...생략...)
# The primary network interface
#auto ens160
#iface ens160 inet static
auto eth0
iface eth0 inet static
address 192.168.0.33
netmask 255.255.255.0
gateway 192.168.0.1


USER1@UBUNTU18:~$ sudo vi /etc/netplan/00-installer-config.yaml
# This is the network config written by 'subiquity'
network:
  ethernets:
    #ens160:
    eth0:
      dhcp4: no
      addresses:
      - 192.168.0.32/24
      gateway4: 192.168.0.1
      nameservers: {}
  version: 2

;리부팅 후 결과

USER1@UBUNTU16:~$ ifconfig -a
eth0      Link encap:Ethernet  HWaddr 12:3c:29:33:ec:df  
          inet addr:192.168.0.33  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::123:29ff:fe33:ecdf/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:173 errors:0 dropped:0 overruns:0 frame:0
          TX packets:200 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:40750 (40.7 KB)  TX bytes:26522 (26.5 KB)


root@UBUNTU16:~$ dmesg |grep -i net
(...생략...)
[    1.120281] FUJITSU Extended Socket Network Device Driver - version 1.0 - Copyright (c) 2015 FUJITSU LIMITED
[    1.165768] VMware vmxnet3 virtual NIC driver - version 1.4.14.0-k-NAPI
[    1.165899] vmxnet3 0000:03:00.0: # of Tx queues : 4, # of Rx queues : 4
[    1.166926] vmxnet3 0000:03:00.0 eth0: NIC Link is Up 10000 Mbps
[    1.179391] vmxnet3 0000:03:00.0 ens160: renamed from eth0
[    2.608323] SELinux:  Unregistering netfilter hooks
[    2.841503] systemd[1]: Reached target Network (Pre).
[    3.021175] vmxnet3 0000:03:00.0 eth0: renamed from ens160
[    3.146681] vmxnet3 0000:03:00.0 eth0: intr type 3, mode 0, 5 vectors allocated
[    3.147669] vmxnet3 0000:03:00.0 eth0: NIC Link is Up 10000 Mbps
(...생략...)

; network 설정 추가 확인

USER1@UBUNTU18:~$ lshw -C network
WARNING: you should run this program as super-user.
  *-network                 
       description: Ethernet interface
       product: VMXNET3 Ethernet Controller
       vendor: VMware
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: eth0
       version: 01
       serial: 12:3c:29:05:f3:ba
       size: 10Gbit/s
       capacity: 10Gbit/s
       width: 32 bits
       clock: 33MHz
       (...생략...)

USER1@UBUNTU18:~$ find /sys/devices/ -name device |grep net
/sys/devices/pci0000:00/0000:00:15.0/0000:03:00.0/net/eth0/device

3. 참고용

; OS 버전별 기본 설치 후 인식된 네트웍 장치 이름

VERSION="20.04.2 LTS (Focal Fossa)"
logical name: ens160

VERSION="18.04.5 LTS (Bionic Beaver)"
logical name: ens160

VERSION="16.04.7 LTS (Xenial Xerus)"
logical name: ens160

VERSION="14.04.2 LTS, Trusty Tahr"
logical name: eth0

VERSION="12.04.5 LTS, Precise Pangolin"
logical name: eth0


CentOS Stream release 8
logical name: ens192

CentOS Linux release 7.9.2009 (Core)
logical name: ens192

CentOS release 6.10 (Final)
logical name: eth0

CentOS release 6.2 (Final)
logical name: eth0

참고 글