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linuxubuntudhcpstatic-ip-addressnetworkmanager
Fakhamatia
Fakhamatia

Reputation: 1402

Check NetworkManager is DHCP or Static with command line Ubuntu

How can I check the GUI network setting is set DHCP or Static with command line? for the active and connected interface in Ubuntu 18.04

I want one line command like grep give me static/dhcp or true/false

screenshot

Upvotes: 2

Views: 3133

Answers (2)

P.P
P.P

Reputation: 121387

Can use ip command to check interface you're interested in.

E.g. to check the interface eth0:

if ip -6 addr show eth0  | grep -q dynamic; then
    echo "Uses DHCP addressing"
else
    echo "Uses static addressing"
fi

-6 option is for checking IPv6 interface. You can use -4 for IPv4.

Upvotes: 3

idan
idan

Reputation: 555

nmcli -f ipv4.method con show

If the output is auto, then it is DHCP. If the output is manual, then it is static.

or

cat /etc/network/interfaces

DHCP enabled

auto eth0

iface eth0 inet dhcp

Upvotes: -1

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