2020-06-15配置两套网卡配置

配置多套网卡配置，方便在测试的时候切换地址

[23:10:43 root@localhost ~]#nmcli connection 
NAME    UUID                                  TYPE      DEVICE 
eth0    5fb06bd0-0bb0-7ffb-45f1-d6edd65f3e03  ethernet  eth0   
eth1    9c92fad9-6ecb-3e6c-eb4d-8a47c6f50c04  ethernet  eth1   
virbr0  7fa014a2-3931-407c-a02c-56312ae92316  bridge    virbr0 
[23:10:55 root@localhost ~]#nmcli connection add con-name eth1-test ifname eth1 type ethernet ipv4.method manual ipv4.addresses 31.0.158.236/24
Connection 'eth1-test' (90be13dd-8db9-473a-afee-4c302541915d) successfully added.
[23:12:48 root@localhost ~]#nmcli connection 
NAME       UUID                                  TYPE      DEVICE 
eth0       5fb06bd0-0bb0-7ffb-45f1-d6edd65f3e03  ethernet  eth0   
eth1       9c92fad9-6ecb-3e6c-eb4d-8a47c6f50c04  ethernet  eth1   
virbr0     7fa014a2-3931-407c-a02c-56312ae92316  bridge    virbr0 
eth1-test  90be13dd-8db9-473a-afee-4c302541915d  ethernet  --     
[23:12:53 root@localhost ~]#cdnet
[23:13:56 root@localhost network-scripts]#ls
ifcfg-eth0       ifdown-bnep  ifdown-isdn    ifdown-Team      ifup-bnep  ifup-isdn   ifup-routes    ifup-wireless
ifcfg-eth1       ifdown-eth   ifdown-post    ifdown-TeamPort  ifup-eth   ifup-plip   ifup-sit       init.ipv6-global
ifcfg-eth1-test  ifdown-ib    ifdown-ppp     ifdown-tunnel    ifup-ib    ifup-plusb  ifup-Team      network-functions
ifcfg-lo         ifdown-ippp  ifdown-routes  ifup             ifup-ippp  ifup-post   ifup-TeamPort  network-functions-ipv6
ifdown           ifdown-ipv6  ifdown-sit     ifup-aliases     ifup-ipv6  ifup-ppp    ifup-tunnel
[23:13:59 root@localhost network-scripts]#ip a
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: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0c:29:53:74:3a brd ff:ff:ff:ff:ff:ff
    inet 192.168.70.7/24 brd 192.168.70.255 scope global noprefixroute eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::20c:29ff:fe53:743a/64 scope link 
       valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0c:29:53:74:44 brd ff:ff:ff:ff:ff:ff
    inet 31.0.158.235/24 brd 31.0.158.255 scope global noprefixroute eth1
       valid_lft forever preferred_lft forever
    inet6 fe80::20c:29ff:fe53:7444/64 scope link 
       valid_lft forever preferred_lft forever
4: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
    link/ether 52:54:00:7f:41:29 brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
       valid_lft forever preferred_lft forever
5: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN group default qlen 1000
    link/ether 52:54:00:7f:41:29 brd ff:ff:ff:ff:ff:ff
[23:14:55 root@localhost network-scripts]#nmcli connection up eth1-test 
Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/6)
[23:15:58 root@localhost network-scripts]#nmcli connection
NAME       UUID                                  TYPE      DEVICE 
eth0       5fb06bd0-0bb0-7ffb-45f1-d6edd65f3e03  ethernet  eth0   
eth1-test  90be13dd-8db9-473a-afee-4c302541915d  ethernet  eth1   
virbr0     7fa014a2-3931-407c-a02c-56312ae92316  bridge    virbr0 
eth1       9c92fad9-6ecb-3e6c-eb4d-8a47c6f50c04  ethernet  --  
[23:16:07 root@localhost network-scripts]#ip a
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: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0c:29:53:74:3a brd ff:ff:ff:ff:ff:ff
    inet 192.168.70.7/24 brd 192.168.70.255 scope global noprefixroute eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::20c:29ff:fe53:743a/64 scope link 
       valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0c:29:53:74:44 brd ff:ff:ff:ff:ff:ff
    inet 31.0.158.236/24 brd 31.0.158.255 scope global noprefixroute eth1
       valid_lft forever preferred_lft forever
    inet6 fe80::f4fe:6040:a639:2932/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
4: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
    link/ether 52:54:00:7f:41:29 brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
       valid_lft forever preferred_lft forever
5: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN group default qlen 1000
    link/ether 52:54:00:7f:41:29 brd ff:ff:ff:ff:ff:ff

再添加可以手动修改ifcfg-eth1-test文件，修改IP地址和UID及name
然后nmcli connection reload加载配置，nmcli connection up eth1-test2启用

删除
[23:17:05 root@localhost network-scripts]#nmcli connection delete eth1-tes