CentOS 7Lo instalé VirtualBoxy quiero que el invitado CentOSuse una dirección IP dinámica. El tipo de red es bridged.
El host OSes Windows 7y la información de la red es así:
Modifiqué la configuración de la tarjeta de red del invitado CentOS:
Después de ejecutar el comando " service network restart" y usar ip addrpara mostrar la IPdirección:
La red y dhcplos registros relacionados son así:
Jun 4 01:52:40 CentOS kernel: drop_monitor: Initializing network drop monitor service
Jun 4 01:52:40 CentOS kernel: e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI
Jun 4 01:52:41 CentOS kernel: e1000 0000:00:03.0 eth0: Intel(R) PRO/1000 Network Connection
Jun 4 01:52:41 CentOS systemd-udevd[234]: renamed network interface eth0 to enp0s3
Jun 4 01:52:47 CentOS systemd: Starting Import network configuration from initramfs...
Jun 4 01:52:47 CentOS systemd: Started Import network configuration from initramfs.
Jun 4 01:52:51 CentOS systemd: Starting Network Manager...
Jun 4 01:52:51 CentOS NetworkManager[689]: <info> NetworkManager (version 1.0.0-14.git20150121.b4ea599c.el7) is starting...
Jun 4 01:52:51 CentOS NetworkManager[689]: <info> Read config: /etc/NetworkManager/NetworkManager.conf and conf.d: 10-ibft-plugin.conf
Jun 4 01:52:51 CentOS NetworkManager[689]: <info> WEXT support is disabled
Jun 4 01:52:51 CentOS NetworkManager[689]: <info> Acquired D-Bus service com.redhat.ifcfgrh1
Jun 4 01:52:51 CentOS NetworkManager[689]: <info> Loaded plugin ifcfg-rh: (c) 2007 - 2013 Red Hat, Inc. To report bugs please use the NetworkManager mailing list.
Jun 4 01:52:51 CentOS NetworkManager[689]: <info> Loaded plugin iBFT: (c) 2014 Red Hat, Inc. To report bugs please use the NetworkManager mailing list.
Jun 4 01:52:51 CentOS NetworkManager[689]: <info> Loaded plugin keyfile: (c) 2007 - 2013 Red Hat, Inc. To report bugs please use the NetworkManager mailing list.
Jun 4 01:52:51 CentOS NetworkManager[689]: <info> parsing /etc/sysconfig/network-scripts/ifcfg-lo ...
Jun 4 01:52:51 CentOS NetworkManager[689]: <info> parsing /etc/sysconfig/network-scripts/ifcfg-enp0s3 ...
Jun 4 01:52:51 CentOS NetworkManager[689]: <info> read connection 'enp0s3'
Jun 4 01:52:51 CentOS NetworkManager[689]: <info> monitoring kernel firmware directory '/lib/firmware'.
Jun 4 01:52:51 CentOS systemd: Started Network Manager.
Jun 4 01:52:51 CentOS systemd: Starting LSB: Bring up/down networking...
Jun 4 01:52:51 CentOS NetworkManager[689]: <info> WiFi enabled by radio killswitch; enabled by state file
Jun 4 01:52:51 CentOS NetworkManager[689]: <info> WWAN enabled by radio killswitch; enabled by state file
Jun 4 01:52:51 CentOS NetworkManager[689]: <info> WiMAX enabled by radio killswitch; enabled by state file
Jun 4 01:52:51 CentOS NetworkManager[689]: <info> Networking is enabled by state file
Jun 4 01:52:51 CentOS NetworkManager[689]: <info> (lo): link connected
Jun 4 01:52:51 CentOS NetworkManager[689]: <info> (lo): carrier is ON
Jun 4 01:52:51 CentOS NetworkManager[689]: <info> (lo): new Generic device (driver: 'unknown' ifindex: 1)
Jun 4 01:52:51 CentOS NetworkManager[689]: <info> (lo): exported as /org/freedesktop/NetworkManager/Devices/0
Jun 4 01:52:51 CentOS NetworkManager[689]: <info> (enp0s3): carrier is OFF
Jun 4 01:52:51 CentOS NetworkManager[689]: <info> (enp0s3): new Ethernet device (driver: 'e1000' ifindex: 2)
Jun 4 01:52:51 CentOS NetworkManager[689]: <info> (enp0s3): exported as /org/freedesktop/NetworkManager/Devices/1
Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): preparing device
Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): link connected
Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): device state change: unavailable -> disconnected (reason 'carrier-changed') [20 30 40]
Jun 4 01:52:52 CentOS NetworkManager[689]: <info> Auto-activating connection 'enp0s3'.
Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): Activation: starting connection 'enp0s3'
Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 1 of 5 (Device Prepare) scheduled...
Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 1 of 5 (Device Prepare) started...
Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): device state change: disconnected -> prepare (reason 'none') [30 40 0]
Jun 4 01:52:52 CentOS NetworkManager[689]: <info> NetworkManager state is now CONNECTING
Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) scheduled...
Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 1 of 5 (Device Prepare) complete.
Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) starting...
Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): device state change: prepare -> config (reason 'none') [40 50 0]
Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) successful.
Jun 4 01:52:52 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) complete.
Jun 4 01:52:52 CentOS NetworkManager[689]: <info> parsing /etc/sysconfig/network-scripts/ifcfg-lo ...
Jun 4 01:52:52 CentOS network: Bringing up loopback interface: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo'
Jun 4 01:52:52 CentOS NetworkManager[689]: <info> parsing /etc/sysconfig/network-scripts/ifcfg-lo ...
Jun 4 01:52:52 CentOS network: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo'
Jun 4 01:52:52 CentOS NetworkManager[689]: <info> parsing /etc/sysconfig/network-scripts/ifcfg-lo ...
Jun 4 01:52:52 CentOS network: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo'
Jun 4 01:52:53 CentOS NetworkManager[689]: <info> parsing /etc/sysconfig/network-scripts/ifcfg-lo ...
Jun 4 01:52:53 CentOS network: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo'
Jun 4 01:52:53 CentOS network: [ OK ]
Jun 4 01:52:53 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 3 of 5 (IP Configure Start) scheduled.
Jun 4 01:52:53 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 3 of 5 (IP Configure Start) started...
Jun 4 01:52:53 CentOS NetworkManager[689]: <info> (enp0s3): device state change: config -> ip-config (reason 'none') [50 70 0]
Jun 4 01:52:53 CentOS NetworkManager[689]: <info> Activation (enp0s3) Beginning DHCPv4 transaction (timeout in 45 seconds)
Jun 4 01:52:53 CentOS NetworkManager[689]: <info> dhclient started with pid 1140
Jun 4 01:52:53 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 3 of 5 (IP Configure Start) complete.
Jun 4 01:52:53 CentOS network: Bringing up interface enp0s3: [ OK ]
Jun 4 01:52:53 CentOS systemd: Started LSB: Bring up/down networking.
Jun 4 01:52:53 CentOS systemd: Starting Network.
Jun 4 01:52:53 CentOS systemd: Reached target Network.
Jun 4 01:52:53 CentOS dhclient[1140]: DHCPREQUEST on enp0s3 to 255.255.255.255 port 67 (xid=0x623c8c73)
Jun 4 01:52:59 CentOS dhclient[1140]: DHCPREQUEST on enp0s3 to 255.255.255.255 port 67 (xid=0x623c8c73)
Jun 4 01:53:06 CentOS dhclient[1140]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 7 (xid=0x28b9690d)
Jun 4 01:53:13 CentOS dhclient[1140]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 17 (xid=0x28b9690d)
Jun 4 01:53:24 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv6 Configure Timeout) scheduled...
Jun 4 01:53:24 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv6 Configure Timeout) started...
Jun 4 01:53:24 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv6 Configure Timeout) complete.
Jun 4 01:53:30 CentOS dhclient[1140]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 14 (xid=0x28b9690d)
Jun 4 01:53:38 CentOS NetworkManager[689]: <warn> (enp0s3): DHCPv4 request timed out.
Jun 4 01:53:38 CentOS NetworkManager[689]: <info> (enp0s3): DHCPv4 state changed unknown -> timeout
Jun 4 01:53:38 CentOS NetworkManager[689]: <info> (enp0s3): canceled DHCP transaction, DHCP client pid 1140
Jun 4 01:53:38 CentOS NetworkManager[689]: <info> (enp0s3): DHCPv4 state changed timeout -> done
Jun 4 01:53:38 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv4 Configure Timeout) scheduled...
Jun 4 01:53:38 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv4 Configure Timeout) started...
Jun 4 01:53:38 CentOS NetworkManager[689]: <info> (enp0s3): device state change: ip-config -> failed (reason 'ip-config-unavailable') [70 120 5]
Jun 4 01:53:38 CentOS NetworkManager[689]: <info> NetworkManager state is now DISCONNECTED
Jun 4 01:53:38 CentOS NetworkManager[689]: <info> startup complete
Jun 4 01:53:38 CentOS NetworkManager[689]: <warn> (enp0s3): Activation: failed for connection 'enp0s3'
Jun 4 01:53:38 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv4 Configure Timeout) complete.
Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): device state change: failed -> disconnected (reason 'none') [120 30 0]
Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): deactivating device (reason 'none') [0]
Jun 4 01:53:39 CentOS NetworkManager[689]: <info> Auto-activating connection 'enp0s3'.
Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: starting connection 'enp0s3'
Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 1 of 5 (Device Prepare) scheduled...
Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 1 of 5 (Device Prepare) started...
Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): device state change: disconnected -> prepare (reason 'none') [30 40 0]
Jun 4 01:53:39 CentOS NetworkManager[689]: <info> NetworkManager state is now CONNECTING
Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) scheduled...
Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 1 of 5 (Device Prepare) complete.
Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) starting...
Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): device state change: prepare -> config (reason 'none') [40 50 0]
Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) successful.
Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) complete.
Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 3 of 5 (IP Configure Start) scheduled.
Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 3 of 5 (IP Configure Start) started...
Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): device state change: config -> ip-config (reason 'none') [50 70 0]
Jun 4 01:53:39 CentOS NetworkManager[689]: <info> Activation (enp0s3) Beginning DHCPv4 transaction (timeout in 45 seconds)
Jun 4 01:53:39 CentOS NetworkManager[689]: <info> dhclient started with pid 2365
Jun 4 01:53:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 3 of 5 (IP Configure Start) complete.
Jun 4 01:53:39 CentOS dhclient[2365]: DHCPREQUEST on enp0s3 to 255.255.255.255 port 67 (xid=0x224ada0f)
Jun 4 01:53:42 CentOS dhclient[2365]: DHCPREQUEST on enp0s3 to 255.255.255.255 port 67 (xid=0x224ada0f)
Jun 4 01:53:46 CentOS dhclient[2365]: DHCPREQUEST on enp0s3 to 255.255.255.255 port 67 (xid=0x224ada0f)
Jun 4 01:53:54 CentOS dhclient[2365]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 7 (xid=0x1de75b49)
Jun 4 01:54:01 CentOS dhclient[2365]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 11 (xid=0x1de75b49)
Jun 4 01:54:10 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv6 Configure Timeout) scheduled...
Jun 4 01:54:10 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv6 Configure Timeout) started...
Jun 4 01:54:10 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv6 Configure Timeout) complete.
Jun 4 01:54:12 CentOS dhclient[2365]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 21 (xid=0x1de75b49)
Jun 4 01:54:23 CentOS NetworkManager[689]: <warn> (enp0s3): DHCPv4 request timed out.
Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): DHCPv4 state changed unknown -> timeout
Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): canceled DHCP transaction, DHCP client pid 2365
Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): DHCPv4 state changed timeout -> done
Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv4 Configure Timeout) scheduled...
Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv4 Configure Timeout) started...
Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): device state change: ip-config -> failed (reason 'ip-config-unavailable') [70 120 5]
Jun 4 01:54:23 CentOS NetworkManager[689]: <info> NetworkManager state is now DISCONNECTED
Jun 4 01:54:23 CentOS NetworkManager[689]: <warn> (enp0s3): Activation: failed for connection 'enp0s3'
Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv4 Configure Timeout) complete.
Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): device state change: failed -> disconnected (reason 'none') [120 30 0]
Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): deactivating device (reason 'none') [0]
Jun 4 01:54:23 CentOS NetworkManager[689]: <info> Auto-activating connection 'enp0s3'.
Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): Activation: starting connection 'enp0s3'
Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 1 of 5 (Device Prepare) scheduled...
Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 1 of 5 (Device Prepare) started...
Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): device state change: disconnected -> prepare (reason 'none') [30 40 0]
Jun 4 01:54:23 CentOS NetworkManager[689]: <info> NetworkManager state is now CONNECTING
Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) scheduled...
Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 1 of 5 (Device Prepare) complete.
Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) starting...
Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): device state change: prepare -> config (reason 'none') [40 50 0]
Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) successful.
Jun 4 01:54:23 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) complete.
Jun 4 01:54:24 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 3 of 5 (IP Configure Start) scheduled.
Jun 4 01:54:24 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 3 of 5 (IP Configure Start) started...
Jun 4 01:54:24 CentOS NetworkManager[689]: <info> (enp0s3): device state change: config -> ip-config (reason 'none') [50 70 0]
Jun 4 01:54:24 CentOS NetworkManager[689]: <info> Activation (enp0s3) Beginning DHCPv4 transaction (timeout in 45 seconds)
Jun 4 01:54:24 CentOS NetworkManager[689]: <info> dhclient started with pid 2393
Jun 4 01:54:24 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 3 of 5 (IP Configure Start) complete.
Jun 4 01:54:24 CentOS dhclient[2393]: DHCPREQUEST on enp0s3 to 255.255.255.255 port 67 (xid=0x77843ed1)
Jun 4 01:54:29 CentOS dhclient[2393]: DHCPREQUEST on enp0s3 to 255.255.255.255 port 67 (xid=0x77843ed1)
Jun 4 01:54:41 CentOS dhclient[2393]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 4 (xid=0xe3a3af6)
Jun 4 01:54:45 CentOS dhclient[2393]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 5 (xid=0xe3a3af6)
Jun 4 01:54:50 CentOS dhclient[2393]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 12 (xid=0xe3a3af6)
Jun 4 01:54:55 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv6 Configure Timeout) scheduled...
Jun 4 01:54:55 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv6 Configure Timeout) started...
Jun 4 01:54:55 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv6 Configure Timeout) complete.
Jun 4 01:55:02 CentOS dhclient[2393]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 14 (xid=0xe3a3af6)
Jun 4 01:55:08 CentOS NetworkManager[689]: <warn> (enp0s3): DHCPv4 request timed out.
Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): DHCPv4 state changed unknown -> timeout
Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): canceled DHCP transaction, DHCP client pid 2393
Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): DHCPv4 state changed timeout -> done
Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv4 Configure Timeout) scheduled...
Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv4 Configure Timeout) started...
Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): device state change: ip-config -> failed (reason 'ip-config-unavailable') [70 120 5]
Jun 4 01:55:08 CentOS NetworkManager[689]: <info> NetworkManager state is now DISCONNECTED
Jun 4 01:55:08 CentOS NetworkManager[689]: <warn> (enp0s3): Activation: failed for connection 'enp0s3'
Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv4 Configure Timeout) complete.
Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): device state change: failed -> disconnected (reason 'none') [120 30 0]
Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): deactivating device (reason 'none') [0]
Jun 4 01:55:08 CentOS NetworkManager[689]: <info> Auto-activating connection 'enp0s3'.
Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): Activation: starting connection 'enp0s3'
Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 1 of 5 (Device Prepare) scheduled...
Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 1 of 5 (Device Prepare) started...
Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): device state change: disconnected -> prepare (reason 'none') [30 40 0]
Jun 4 01:55:08 CentOS NetworkManager[689]: <info> NetworkManager state is now CONNECTING
Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) scheduled...
Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 1 of 5 (Device Prepare) complete.
Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) starting...
Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): device state change: prepare -> config (reason 'none') [40 50 0]
Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) successful.
Jun 4 01:55:08 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 2 of 5 (Device Configure) complete.
Jun 4 01:55:09 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 3 of 5 (IP Configure Start) scheduled.
Jun 4 01:55:09 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 3 of 5 (IP Configure Start) started...
Jun 4 01:55:09 CentOS NetworkManager[689]: <info> (enp0s3): device state change: config -> ip-config (reason 'none') [50 70 0]
Jun 4 01:55:09 CentOS NetworkManager[689]: <info> Activation (enp0s3) Beginning DHCPv4 transaction (timeout in 45 seconds)
Jun 4 01:55:09 CentOS NetworkManager[689]: <info> dhclient started with pid 2421
Jun 4 01:55:09 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 3 of 5 (IP Configure Start) complete.
Jun 4 01:55:09 CentOS dhclient[2421]: DHCPREQUEST on enp0s3 to 255.255.255.255 port 67 (xid=0xc0de211)
Jun 4 01:55:12 CentOS dhclient[2421]: DHCPREQUEST on enp0s3 to 255.255.255.255 port 67 (xid=0xc0de211)
Jun 4 01:55:16 CentOS dhclient[2421]: DHCPREQUEST on enp0s3 to 255.255.255.255 port 67 (xid=0xc0de211)
Jun 4 01:55:27 CentOS dhclient[2421]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 4 (xid=0x281d5ba3)
Jun 4 01:55:31 CentOS dhclient[2421]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 10 (xid=0x281d5ba3)
Jun 4 01:55:34 CentOS dhclient[2425]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 4 (xid=0x3e3fe85b)
Jun 4 01:55:38 CentOS dhclient[2425]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 5 (xid=0x3e3fe85b)
Jun 4 01:55:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv6 Configure Timeout) scheduled...
Jun 4 01:55:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv6 Configure Timeout) started...
Jun 4 01:55:39 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv6 Configure Timeout) complete.
Jun 4 01:55:41 CentOS dhclient[2421]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 7 (xid=0x281d5ba3)
Jun 4 01:55:43 CentOS dhclient[2425]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 12 (xid=0x3e3fe85b)
Jun 4 01:55:48 CentOS dhclient[2421]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 11 (xid=0x281d5ba3)
Jun 4 01:55:53 CentOS NetworkManager[689]: <warn> (enp0s3): DHCPv4 request timed out.
Jun 4 01:55:53 CentOS NetworkManager[689]: <info> (enp0s3): DHCPv4 state changed unknown -> timeout
Jun 4 01:55:53 CentOS NetworkManager[689]: <info> (enp0s3): canceled DHCP transaction, DHCP client pid 2421
Jun 4 01:55:53 CentOS NetworkManager[689]: <info> (enp0s3): DHCPv4 state changed timeout -> done
Jun 4 01:55:53 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv4 Configure Timeout) scheduled...
Jun 4 01:55:53 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv4 Configure Timeout) started...
Jun 4 01:55:53 CentOS NetworkManager[689]: <info> (enp0s3): device state change: ip-config -> failed (reason 'ip-config-unavailable') [70 120 5]
Jun 4 01:55:53 CentOS NetworkManager[689]: <info> NetworkManager state is now DISCONNECTED
Jun 4 01:55:53 CentOS NetworkManager[689]: <info> Disabling autoconnect for connection 'enp0s3'.
Jun 4 01:55:53 CentOS NetworkManager[689]: <warn> (enp0s3): Activation: failed for connection 'enp0s3'
Jun 4 01:55:53 CentOS NetworkManager[689]: <info> (enp0s3): Activation: Stage 4 of 5 (IPv4 Configure Timeout) complete.
Jun 4 01:55:53 CentOS NetworkManager[689]: <info> (enp0s3): device state change: failed -> disconnected (reason 'none') [120 30 0]
Jun 4 01:55:53 CentOS NetworkManager[689]: <info> (enp0s3): deactivating device (reason 'none') [0]
Jun 4 01:55:55 CentOS dhclient[2425]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 11 (xid=0x3e3fe85b)
Jun 4 01:56:06 CentOS dhclient[2425]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 17 (xid=0x3e3fe85b)
Jun 4 01:56:23 CentOS dhclient[2425]: DHCPDISCOVER on enp0s3 to 255.255.255.255 port 67 interval 12 (xid=0x3e3fe85b)
Jun 4 01:56:35 CentOS dhclient[2425]: No DHCPOFFERS received.
Jun 4 01:56:35 CentOS dhclient[2425]: No working leases in persistent database - sleeping.
La tarjeta de red enp0s3aún no puede obtener una IPdirección válida. ¿Alguien podría dar algunas pistas sobre este tema?