Add a new default gateway.

Add a new route table entry.

Add a slave to abridge device.

Create the actual bridge device.

Returns an array of IPNet for all the currently routed subnets on ipv4 This is similar to the first column of "ip route" output.

Add a new network link of a specified type.

Add an Ip address to an interface.

Bring up a particular network interface.

same as ip link set $name master $master.

A Route is a subnet associated with the interface to reach it.