nmcli - command-line tool for controlling NetworkManager

ipv4 status/list command examples

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list of all the devices:

nmcli dev status

show all connections:

nmcli connection show

show all active connections:

nmcli connection show --active

reread the configuration files.:

nmcli con reload

set the hostname:

hostnamectl set-hostname ...

ipv4 add command examples

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Example:

Device is eno1, ip address is 192.168.0.99, gateway 192.168.0.254 and netmask is 24.

Using `DHCP`:

nmcli con add con-name eno1 type ethernet ifname eno1

Static:

nmcli con add con-name eno1 type ethernet ifname eno1 ip4 192.168.0.99/24 gw4 192.168.0.254

modify regular

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Basic command: nmcli con mod <<interface>>

Add a DNS server to a connection: nmcli con mod <<interface>> +ipv4.dns <<ipaddress>>

Useful parameters:

bring interface up/down

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bring up:

nmcli con up eno1

disconnect:

nmcli dev dis eno1

ipv6

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[2001:db8:0:10::1]:80

IPv6 has a standard subnetmask, which is used in almost all normal addresses: /64. In this case half of the address is the network prefix and half is the interface ID.

Network providers often apply a subnetmask of /48 which can then be allocated to organisations. The 16 bits left make for up to 65536 subnets.

Network part interfac e ID

2001 0db8 0000 0001 0000 0000 0000 0001

Network Part (48) Local
subnets

command examples

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Multicast ping:

ping6 ff02::1%eth0

Show ipv6 routing:

ip -6 route show

Common addresses:

Look into

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router advertisment daemon

See Also

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• nm-settings