NETWORKING

[root@SysAdmin ~]# ifconfig
enp0s3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.0.2.15  netmask 255.255.255.0  broadcast 10.0.2.255
        ether 08:00:27:7d:ac:21  txqueuelen 1000  (Ethernet)
        RX packets 178  bytes 16738 (16.3 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 198  bytes 16303 (15.9 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
 
enp0s8: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.56.72  netmask 255.255.255.0  broadcast 192.168.56.255
        ether 08:00:27:0b:29:af  txqueuelen 1000  (Ethernet)
        RX packets 1934  bytes 177352 (173.1 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1240  bytes 167384 (163.4 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 1000  (Local Loopback)
        RX packets 17  bytes 2057 (2.0 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 17  bytes 2057 (2.0 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
 
[root@SysAdmin ~]# ip a s
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 08:00:27:7d:ac:21 brd ff:ff:ff:ff:ff:ff
    inet 10.0.2.15/24 brd 10.0.2.255 scope global dynamic noprefixroute enp0s3
       valid_lft 82332sec preferred_lft 82332sec
3: enp0s8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 08:00:27:0b:29:af brd ff:ff:ff:ff:ff:ff
    inet 192.168.56.72/24 brd 192.168.56.255 scope global noprefixroute enp0s8
       valid_lft forever preferred_lft forever
 
[root@SysAdmin ~]# ethtool enp0s8
Settings for enp0s8:
        Supported ports: [ TP ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Full
        Supported pause frame use: No
        Supports auto-negotiation: Yes
        Supported FEC modes: Not reported
        Advertised link modes:  10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Full
        Advertised pause frame use: No
        Advertised auto-negotiation: Yes
        Advertised FEC modes: Not reported
        Speed: 1000Mb/s
        Duplex: Full
        Auto-negotiation: on
        Port: Twisted Pair
        PHYAD: 0
        Transceiver: internal
        MDI-X: off (auto)
        Supports Wake-on: umbg
        Wake-on: d
        Current message level: 0x00000007 (7)
                               drv probe link
        Link detected: yes
 
[root@SysAdmin ~]# ip a s enp0s8
3: enp0s8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 08:00:27:0b:29:af brd ff:ff:ff:ff:ff:ff
    inet 192.168.56.72/24 brd 192.168.56.255 scope global noprefixroute enp0s8
       valid_lft forever preferred_lft forever
 
[root@SysAdmin ~]# ip a s enp0s3
2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 08:00:27:7d:ac:21 brd ff:ff:ff:ff:ff:ff
    inet 10.0.2.15/24 brd 10.0.2.255 scope global dynamic noprefixroute enp0s3
       valid_lft 81745sec preferred_lft 81745sec
 
[root@SysAdmin ~]# nmcli connection show
NAME          UUID                                  TYPE      DEVICE
enp0s3        45efe5fa-5f9f-3a9c-a9a4-4a5fa145a124  ethernet  enp0s3
vdconnection  32901366-6e40-4f50-a04c-8408c0872be1  ethernet  enp0s8
lo            263bfde8-a94b-4d62-9894-b2cf23f82661  loopback  lo
 
[root@SysAdmin ~]# nmcli device status
DEVICE  TYPE      STATE                   CONNECTION
enp0s3  ethernet  connected               enp0s3
enp0s8  ethernet  connected               vdconnection
lo      loopback  connected (externally)  lo
 
[root@SysAdmin ~]# nmcli connection delete vdconnection
Connection 'vdconnection' (32901366-6e40-4f50-a04c-8408c0872be1) successfully deleted.
 
[root@SysAdmin ~]# nmcli connection add con-name vdconnection ifname enp0s8 type ethernet ipv4.addresses 192.168.56.72/24 ipv4.gateway 192.168.56.1 ipv4.dns 8.8.8.8 ipv4.method manual autoconnect yes
 
[root@SysAdmin ~]# nmcli connection modify vdconnection ipv4.addresses 192.168.56.70/24
 
[root@SysAdmin ~]# nmcli connection down vdconnection;nmcli connection up vdconnection