openeuler 2203 Linux 网卡名称,IP,MAC地址漂移解决方法 |
| 发表者：admin分类：Devops2024-01-03 16:34:58 阅读[302] |
openeuler 2203 Linux 网卡名称,IP,MAC地址漂移解决方法
一，具体情况，
主机有4个网卡，全部使用中，发现其中一个网卡enp6s0网络不通，查看网卡信息名称变成了 rename3,
即便使用图形界面，也没法启动网卡enp6s0。
如下信息
[root@CE010101000001 ~]# ip addr show
2: enp5s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether cc:82:7f:35:12:67 brd ff:ff:ff:ff:ff:ff
altname enp4s0
inet 192.168.2.101/24 brd 192.168.2.255 scope global noprefixroute enp5s0
valid_lft forever preferred_lft forever
3: rename3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether cc:82:7f:35:12:68 brd ff:ff:ff:ff:ff:ff
inet 192.168.7.200/24 brd 192.168.7.255 scope global noprefixroute rename3
valid_lft forever preferred_lft forever
4: enp7s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether cc:82:7f:35:12:69 brd ff:ff:ff:ff:ff:ff
altname enp6s0
inet 192.168.0.101/24 brd 192.168.0.255 scope global noprefixroute enp7s0
valid_lft forever preferred_lft forever
5: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether cc:82:7f:35:12:66 brd ff:ff:ff:ff:ff:ff
altname enp0s31f6
inet 10.156.87.101/24 brd 10.156.87.255 scope global noprefixroute eno1
valid_lft forever preferred_lft forever
二，解决方法。
1，添加MAC地址绑定名称文件，重启系统，即可。
[root@CE010101000001 ~]# cat /etc/udev/rules.d/70-persistent-net.rules
SUBSYSTEM=="net",ACTION=="add",ATTR{address}=="cc:82:7f:35:12:66",NAME="eno1"
SUBSYSTEM=="net",ACTION=="add",ATTR{address}=="cc:82:7f:35:12:67",NAME="enp5s0"
SUBSYSTEM=="net",ACTION=="add",ATTR{address}=="cc:82:7f:35:12:68",NAME="enp6s0"
SUBSYSTEM=="net",ACTION=="add",ATTR{address}=="cc:82:7f:35:12:69",NAME="enp7s0"
三，临时解决方法，无需重启系统
1，因为主机一直使用中，无法重启系统 ，只有想办法先联上网。
2，查看ifcfg-enp6s0网卡配置文件
[root@CE010101000001 ~]# cat /etc/sysconfig/network-scripts/ifcfg-enp6s0
# Generated by parse-kickstart
TYPE=Ethernet
DEVICE=enp6s0
#UUID=5c17e691-9b62-4098-a4e6-b941df037f0c
ONBOOT=yes
IPV6INIT=no
PROXY_METHOD=none
BROWSER_ONLY=no
IPV6_DISABLED=yes
NAME=enp6s0
HWADDR=CC:82:7F:35:12:68
BOOTPROTO=none
IPADDR=192.168.7.200
PREFIX=24
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
4，检查网卡的托管状态。
[root@CE010101000001 ~]# nmcli connection show
NAME UUID TYPE DEVICEeno1 abf4c85b-57cc-4484-4fa9-b4a71689c359 ethernet eno1
enp6s0 b43fa2aa-5a85-7b0a-9a20-469067dba6d6 ethernet --
5，发现enp6s0 没有对应的DEVICE硬件网卡信息
6，断开rename4连接 ,可以发现只有rename3, 没有enp6s0
[root@CE010101000001 ~]# nmcli device disconnect
br-38d02ba0def8 docker0 enp5s0 help rename3 veth65d9e04 vethebde10b
br-5d572960399a eno1 enp7s0 lo veth0d40262 vetha0077d5
[root@CE010101000001 ~]# nmcli device disconnect rename3
错误：断开设备 "rename3" (/org/freedesktop/NetworkManager/Devices/5) 的连接失败：This device is not active
错误：未断开所有设备的连接。
7，修改enp6s0配置文件，注释DEVICE绑定信息
[root@CE010101000001 ~]# cat /etc/sysconfig/network-scripts/ifcfg-enp6s0
# Generated by parse-kickstart
TYPE=Ethernet
#DEVICE=enp6s0
#UUID=5c17e691-9b62-4098-a4e6-b941df037f0c
ONBOOT=yes
IPV6INIT=no
PROXY_METHOD=none
BROWSER_ONLY=no
IPV6_DISABLED=yes
NAME=enp6s0
HWADDR=CC:82:7F:35:12:68
BOOTPROTO=none
IPADDR=192.168.7.200
PREFIX=24
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
8，启动网卡enp6s0
连接已成功激活（D-Bus 活动路径：/org/freedesktop/NetworkManager/ActiveConnection/7）
9，查看网卡托管状态与ip 信息正常，恢复通网。
[root@CE010101000001 ~]# nmcli connection show
NAME UUID TYPE DEVICE
eno1 abf4c85b-57cc-4484-4fa9-b4a71689c359 ethernet eno1
enp6s0 b43fa2aa-5a85-7b0a-9a20-469067dba6d6 ethernet rename3
[root@CE010101000001 ~]# ifconfig rename3
rename3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.7.200 netmask 255.255.255.0 broadcast 192.168.7.255
ether cc:82:7f:35:12:68 txqueuelen 1000 (Ethernet)
RX packets 508 bytes 65546 (64.0 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 579 bytes 74511 (72.7 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device memory 0xb1200000-b127ffff
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