RHEL7에서 NIC 장치의 명명 규칙이 변화를 갖었다.
RHEL 7 the names have two character prefixes based on the type of interface:
en for Ethernet,
sl for serial line IP (slip),
wl for wireless LAN (WLAN),
ww for wireless wide area network (WWAN).
과거의 ethx 로 장치명을 사용하기 위해
1. MAC Address 확인
[root@RH71 ~]# ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eno16777736: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT qlen 1000
link/ether 00:0c:29:ed:ac:b5 brd ff:ff:ff:ff:ff:ff
3: eno33554992: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT qlen 1000
link/ether 00:0c:29:ed:ac:bf brd ff:ff:ff:ff:ff:ff
4: eno50332216: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT qlen 1000
link/ether 00:0c:29:ed:ac:c9 brd ff:ff:ff:ff:ff:ff
5: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT
link/ether 52:54:00:2c:27:4b brd ff:ff:ff:ff:ff:ff
6: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN mode DEFAULT qlen 500
link/ether 52:54:00:2c:27:4b brd ff:ff:ff:ff:ff:ff
2. grub 파일을 편집
# vim /etc/default/grub
## add "net.ifnames=0 biosdevname=0" at the end of the "GRUB_CMDLINE_LINUX"
[root@RH71 ~]# cat /etc/default/grub
GRUB_TIMEOUT=5
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="rd.lvm.lv=rhel_rh71/swap rd.lvm.lv=rhel_rh71/root crashkernel=auto rhgb quiet net.ifnames=0 biosdevname=0"
GRUB_DISABLE_RECOVERY="true"
# grub2-mkconfig -o /boot/grub2/grub.cfg
3. ifcfg 파일을 원하는 파일 명으로 변경.
# mv /etc/sysconfig/network-scripts/ifcfg-eno16777736 /etc/sysconfig/network-scripts/ifcfg-enoeth0
# vim ifcfg-enoeth0
4. 명명 규칙 변경
[root@RH71 ~]# vim /etc/udev/rules.d/70-persistent-net.rules
--------------------------
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:ed:ac:b5", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eno16777736", NAME="eth0"
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:ed:ac:bf", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eno33554992", NAME="eth1"
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:ed:ac:c9", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eno50332216", NAME="eth2"
--------------------------
5. 리부팅하여 상태 확인
# systemctl reboot
참고자료
http://ask.xmodulo.com/change-network-interface-name-centos7.html
