tldr/pages/linux/ip-link.md

ip link

Manage network interfaces. More information: https://manned.org/ip-link.

• Show information about all network interfaces:

ip {{[l|link]}}

• Show information about a specific network interface:

ip {{[l|link]}} show {{ethN}}

• Bring a network interface up or down:

ip {{[l|link]}} set {{ethN}} {{up|down}}

• Give a meaningful name to a network interface:

ip {{[l|link]}} set {{ethN}} alias "{{LAN Interface}}"

• Change the MAC address of a network interface:

ip {{[l|link]}} set {{ethN}} address {{ff:ff:ff:ff:ff:ff}}

• Change the MTU size for a network interface to use jumbo frames:

ip {{[l|link]}} set {{ethN}} mtu {{9000}}