Set Static IP Address Using nmcli Tool¶
Using nmcli tool, you can modify a network interface to use a static IP address.
Commands to be executed¶
Use the con show command to check the active connection name:
$ nmcli con show
NAME UUID TYPE DEVICE
Wired connection 1 3a225b30-3f00-3223-9462-3096e837ab88 ethernet eth0
First, run the command below to set up the IP address
$ sudo nmcli con mod 'Wired connection 1' ipv4.addresses 134.86.61.26/25
Should be noted CIDR /25 is for netmask 255.255.255.128 and /24, /16
are for 255.255.255.0, 255.255.0.0 respectively.
Next configure the default gateway as shown:
$ sudo nmcli con mod 'Wired connection 1' ipv4.gateway 134.86.61.126
Then set up the DNS server:
$ sudo nmcli con mod 'Wired connection 1' ipv4.dns 137.202.187.16
change the addressing from DHCP to static:
$ sudo nmcli con mod 'Wired connection 1' ipv4.method manual
Settings for the updated configuration may be checked with nmcli device show as shown below:
# Show the comple
$ nmcli device show
GENERAL.DEVICE: eth0
GENERAL.TYPE: ethernet
GENERAL.HWADDR: 9E:55:11:EF:14:42
GENERAL.MTU: 1500
GENERAL.STATE: 100 (connected)
GENERAL.CONNECTION: Wired connection 1
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/1
WIRED-PROPERTIES.CARRIER: on
IP4.ADDRESS[1]: 134.86.61.26/25
IP4.GATEWAY: 134.86.61.126
IP4.ROUTE[1]: dst = 134.86.61.0/25, nh = 0.0.0.0, mt = 100
IP4.ROUTE[2]: dst = 0.0.0.0/0, nh = 134.86.61.126, mt = 100
IP4.DNS[1]: 137.202.187.16
IP6.ADDRESS[1]: fe80::6aa:4676:4cf4:3760/64
IP6.GATEWAY: --
IP6.ROUTE[1]: dst = fe80::/64, nh = ::, mt = 100
IP6.ROUTE[2]: dst = ff00::/8, nh = ::, mt = 256, table=255
GENERAL.DEVICE: lo
GENERAL.TYPE: loopback
GENERAL.HWADDR: 00:00:00:00:00:00
GENERAL.MTU: 65536
GENERAL.STATE: 10 (unmanaged)
GENERAL.CONNECTION: --
GENERAL.CON-PATH: --
IP4.ADDRESS[1]: 127.0.0.1/8
IP4.GATEWAY: --
IP6.ADDRESS[1]: ::1/128
IP6.GATEWAY: --
IP6.ROUTE[1]: dst = ::1/128, nh = ::, mt = 256
You may then use ping or other network utilities to check your connectivity.