admin Linux 查看网卡的MAC地址
如何使用命令查看网卡的MAC地址呢？ 下面总结一下查看网卡MAC地址的方式。
1：ifconfig命令查看网卡MAC地址
/sbin/ifconfig | grep HWaddr
或
/sbin/ifconfig | grep ether
有些Linux发行版本的MAC地址字段为HWaddr，有些Linux发行版本的MAC地址字段为ether。根据实际情况选择上面命令。
[root@KerryDB ~]# ifconfig -alo: flags=73 mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10 loop txqueuelen 1000 (Local Loopback) RX packets 858 bytes 72251 (70.5 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 858 bytes 72251 (70.5 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 p4p1: flags=4163 mtu 1500 inet 10.20.57.24 netmask 255.255.255.0 broadcast 10.20.57.255 inet6 fe80::b283:feff:fe55:32e5 prefixlen 64 scopeid 0x20 ether b0:83:fe:55:32:e5 txqueuelen 1000 (Ethernet) RX packets 6637181 bytes 1536293500 (1.4 GiB) RX errors 0 dropped 293652 overruns 0 frame 0 TX packets 4333535 bytes 1080300983 (1.0 GiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
如果想只提取网卡MAC地址，可以使用下面命令(用具体的网卡名替换xxx)
ifconfig xxx | grep -o -E ‘([[:xdigit:]]{1,2}:){5}[[:xdigit:]]{1,2}’
[root@KerryDB tmp]# ifconfig p4p1 | grep -o -E ‘([[:xdigit:]]{1,2}:){5}[[:xdigit:]]{1,2}’b0:83:fe:55:32:e5[root@KerryDB tmp]#
方法2：/sys/class/net/xxx/address查看
根据网卡名调整，例如这里网卡名为ens160，如果网卡名为xxx,那么应该用/sys/class/net/xxx/address
# more /sys/class/net/ens160/address00:50:56:95:5c:16 # cat /sys/class/net/eth0/address 00:50:56:b3:81:f8
方法3：ip命令查看网卡MAC地址
[root@KerryDB tmp]# ip link1: lo: mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:002: p4p1: mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000 link/ether b0:83:fe:55:32:e5 brd ff:ff:ff:ff:ff:ff[root@KerryDB tmp]# ip link show1: lo: mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:002: p4p1: mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000 link/ether b0:83:fe:55:32:e5 brd ff:ff:ff:ff:ff:ff[root@KerryDB tmp]# ip link show p4p12: p4p1: mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000 link/ether b0:83:fe:55:32:e5 brd ff:ff:ff:ff:ff:f[root@KerryDB tmp]# ip link show p4p1 | awk ‘/ether/ {print $2}’;b0:83:fe:55:32:e5
4：nmcli命令查看网卡MAC地址
[root@KerryDB tmp]# nmcli device show p4p1GENERAL.DEVICE: p4p1GENERAL.TYPE: ethernetGENERAL.HWADDR: B0:83:FE:55:32:E5GENERAL.MTU: 1500GENERAL.STATE: 100 (connected)GENERAL.CONNECTION: p4p1GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/1WIRED-PROPERTIES.CARRIER: onIP4.ADDRESS[1]: 10.20.57.24/24IP4.GATEWAY: 10.20.57.1IP4.ROUTE[1]: dst = 10.20.57.0/24, nh = 0.0.0.0, mt = 100IP4.ROUTE[2]: dst = 0.0.0.0/0, nh = 10.20.57.1, mt = 100IP6.ADDRESS[1]: fe80::b283:feff:fe55:32e5/64IP6.GATEWAY: –IP6.ROUTE[1]: dst = ff00::/8, nh = ::, mt = 256, table=255IP6.ROUTE[2]: dst = fe80::/64, nh = ::, mt = 256[root@KerryDB tmp]# nmcli device show p4p1 | grep -i hwGENERAL.HWADDR: B0:83:FE:55:32:E5
注意：这里根据实际的网卡名进行调整，如果网卡名为ens160，那么上面命令需要调整为
# nmcli device show ens160 | grep -i hwaddrGENERAL.HWADDR: 00:50:56:B4:00:94
5：dmesg命令查看网卡MAC地址
[root@KerryDB tmp]# dmesg | grep eth[ 0.776155] r8169 0000:02:00.0 eth0: RTL8168g/8111g at 0xffffafbe80648000, b0:83:fe:55:32:e5, XID 0c000800 IRQ 27[ 0.776158] r8169 0000:02:00.0 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko]
参考资料：
https://www.169it.com/article/14360294838474691537.html
https://stackoverflow.com/questions/245916/best-way-to-extract-mac-address-from-ifconfigs-output
