ip link

Manage network interfaces.

• Show information about all network interfaces:

ip link

• Show information about a specific network interface:

ip link show {ethN}

• Bring a network interface up or down:

ip link set {ethN} {up|down}

• Give a meaningful name to a network interface:

ip link set {ethN} alias "{LAN Interface}"

• Change the MAC address of a network interface:

ip link set {ethN} address {ff:ff:ff:ff:ff:ff}

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

ip link set {ethN} mtu {9000}

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