12. 이제 서브넷이 제대로 생성되었는지 ifconfig 명령어를 이용해서 확인해 보겠습니다. brq로 시작하는 새로운 브리지 네트워크와 tap로 시작하는 새로운 포트 네트워크, vxlan으로 시작하는 네트워크가 생성된 것을 확인할 수 있습니다.

[root@controller ~]# ifconfig
brq1fea0317-b4: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1450
        ether 6e:bf:dc:4b:41:3a  txqueuelen 0  (Ethernet)
        RX packets 5  bytes 320 (320.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

brq2efd0120-63: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.0.43 netmask 255.255.255.0 broadcast 192.168.0.255 ether 08:00:27:3f:ad:71 txqueuelen 0 (Ethernet) RX packets 127 bytes 28854 (28.1 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 8 bytes 480 (480.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.56.101 netmask 255.255.255.0 broadcast 192.168.56.255 inet6 fe80::a00:27ff:fe52:3ff5 prefixlen 64 scopeid 0x20<link> ether 08:00:27:52:3f:f5 txqueuelen 1000 (Ethernet) RX packets 36171 bytes 8264436 (7.8 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 29273 bytes 15792368 (15.0 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

eth1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet6 fe80::a00:27ff:fe3f:ad71 prefixlen 64 scopeid 0x20<link> ether 08:00:27:3f:ad:71 txqueuelen 1000 (Ethernet) RX packets 19101 bytes 25209871 (24.0 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 9473 bytes 775104 (756.9 KiB) 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 0 (Local Loopback) RX packets 264635 bytes 70866073 (67.5 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 264635 bytes 70866073 (67.5 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

tap59f52880-ce: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 ether f2:a0:88:d4:a2:7a txqueuelen 1000 (Ethernet) RX packets 8 bytes 648 (648.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 137 bytes 31068 (30.3 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

tape648fefc-aa: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1450 ether e2:c7:e1:b4:f4:f7 txqueuelen 1000 (Ethernet) RX packets 8 bytes 648 (648.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

vxlan-83: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1450 ether 6e:bf:dc:4b:41:3a txqueuelen 0 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 5 overruns 0 carrier 0 collisions 0