ubuntu 18.04 Static IP 설정
ip 및 route 확인
root@test:~# ifconfig ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.0.146 netmask 255.255.255.0 broadcast 192.168.0.255 inet6 fe80::20c:29ff:fe21:fa45 prefixlen 64 scopeid 0x20<link> ether 00:0c:29:21:fa:45 txqueuelen 1000 (Ethernet) RX packets 1081 bytes 1090726 (1.0 MB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 462 bytes 55353 (55.3 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 1000 (Local Loopback) RX packets 220 bytes 17184 (17.1 KB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 220 bytes 17184 (17.1 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 root@test:~# route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.0.2 0.0.0.0 UG 100 0 0 ens33 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 ens33 192.168.0.2 0.0.0.0 255.255.255.255 UH 100 0 0 ens33 root@test:~#
ens33 device 설정
dhcp 사용시 root@test:~# cat /etc/netplan/50-cloud-init.yaml network: ethernets: ens33: addresses: [] dhcp4: true version: 2 static ip 사용시 root@test:~# vi /etc/netplan/50-cloud-init.yaml network: ethernets: ens33: dhcp4: no addresses: [192.168.0.100/24] gateway4: 192.168.0.2 nameservers: addresses: [8.8.8.8,1.1.1.1] version: 2 root@test:~# netplan apply root@test:~# ifconfig ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.0.100 netmask 255.255.255.0 broadcast 192.168.0.255 inet6 fe80::20c:29ff:fe21:fa45 prefixlen 64 scopeid 0x20<link> ether 00:0c:29:21:fa:45 txqueuelen 1000 (Ethernet) RX packets 3349 bytes 1293093 (1.2 MB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 2521 bytes 446805 (446.8 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 1000 (Local Loopback) RX packets 224 bytes 17428 (17.4 KB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 224 bytes 17428 (17.4 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 root@test:~# route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.0.2 0.0.0.0 UG 0 0 0 ens33 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 ens33 root@test:~# ping kr.yahoo.com PING src.san1.g01.yahoodns.net (106.10.248.151) 56(84) bytes of data. 64 bytes from w2.src1.vip.sg3.yahoo.com (106.10.248.151): icmp_seq=1 ttl=128 time=89.9 ms 64 bytes from w2.src1.vip.sg3.yahoo.com (106.10.248.151): icmp_seq=2 ttl=128 time=93.0 ms ^C --- src.san1.g01.yahoodns.net ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 1001ms rtt min/avg/max/mdev = 89.954/91.490/93.027/1.565 ms root@test:~#