[Linux] Host-Only 네트워크가 안 잡히는 문제

✅ 상황

VM에서 Linux를 설치 후 Host-Only Adepter를 활성화 했지만 Network가 안올라오는 중

NIC 조회

ip link

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000
    link/ether 08:00:27:ad:14:29 brd ff:ff:ff:ff:ff:ff

❌ enp0s8(Host-Only Adapter) 조회되지 않음

 

 

NetworkManager 연결이 없는 상태

nmcli device status

DEVICE  TYPE      STATE      	CONNECTION
enp0s3  ethernet  connected  	enp0s3
enp0s8  ethernet  disconnected  --
lo      loopback  unmanaged  	--

👉 리스트에는 있지만

❌ enp0s8의 connection이 안되고 있음

 

 

✅ Network 연결하기

Host-only NIC 연결 생성

nmcli con add type ethernet \
  ifname enp0s8 \
  con-name {NETWORK_NAME} \
  ipv4.method manual \
  ipv4.addresses {IP}/24

예시 👉 더보기 클릭

nmcli con add type ethernet \
  ifname enp0s8 \
  con-name ora-rac1 \
  ipv4.method manual \
  ipv4.addresses 192.168.56.101/24

 

NIC 연결하기

nmcli con up {NETWORK_NAME}

예시 👉 더보기 클릭

nmcli con up ora-rac1

 

연결 상태 확인

ip link

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000
    link/ether 08:00:27:ad:14:29 brd ff:ff:ff:ff:ff:ff
3: enp0s8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000
    link/ether 08:00:27:a4:5d:15 brd ff:ff:ff:ff:ff:ff

⭕enp0s8 정상적으로 올라옴

 

nmcli device status

DEVICE  TYPE      STATE      CONNECTION
enp0s3  ethernet  connected  enp0s3
enp0s8  ethernet  connected  ora-rac1
lo      loopback  unmanaged  --

⭕ enp0s8 정상적으로 연결됨