[리눅스 명령어] arp

시스템의 mac 주소를 확인할때 사용한다. 

root@myserver-001:~# arp
Address                  HWtype  HWaddress           Flags Mask            Iface
10.32.0.2                ether   e2:be:6b:98:75:27   C                     weave
10.32.0.3                ether   c2:2b:4a:0f:0b:5b   C                     weave
10.36.0.1                ether   02:84:38:18:ac:31   C                     weave
10.36.0.2                ether   8e:21:c9:42:d3:da   C                     weave
10.36.0.3                ether   a2:7f:5e:83:5b:c4   C                     weave
10.44.0.4                ether   2a:54:11:6b:1f:fe   C                     weave
10.44.0.5                ether   b6:bb:2c:98:2b:7b   C                     weave
_gateway                 ether   02:50:56:56:44:52   C                     ens160
192.168.0.2                      (incomplete)                              ens160
myserver-002             ether   00:50:56:99:e5:ba   C                     ens160
10.44.0.1                ether   46:bf:dd:bc:51:8a   C                     weave
192.168.30.18                    (incomplete)                              docker0
10.44.0.2                ether   e6:4a:dc:2d:f4:e7   C                     weave
myserver-003             ether   00:50:56:99:1e:4d   C                     ens160
10.44.0.3                ether   96:38:40:ba:ac:a0   C                     weave

다음과 같이 뒤에 host 명을 붙여주면 해당 host 의 정보만 출력한다.

root@myserver-001:~# arp myserver-002
Address                  HWtype  HWaddress           Flags Mask            Iface
myserver-002             ether   00:50:56:99:e5:ba   C                     ens160