Understanding ip command OBJECTS syntax OBJECTS can be any one of the following and may be written in full or abbreviated form:

• Link: Network device (l)
• address: Protocol (IP or IPv6) address on a device (a)
• addrlabel: Label configuration for protocol address selection (addrl)
• neighbour: ARP or NDISC cache entry (neigh)
• route: Routing table entry (r)
• rule: Rule in routing policy database (ru)
• maddress: Multicast address (maddr)
• mroute: Multicast routing cache entry (mr)
• tunnel: Tunnel over IP (t)
• xfrm: Framework for IPsec protocol (x)

ip OBJECT COMMAND
ip [options] OBJECT COMMAND
ip OBJECT help

You can select between IPv4 and IPv6 using the following syntax:

# Only show TCP/IP IPv4
ip -4 a

# Only show TCP/IP IPv6
ip -6 a

It is also possible to specify and list particular interface TCP/IP details:

# Only show eth0 interface
ip a show eth0
ip a list eth0
ip a show dev eth0

# Only show running interfaces
ip link show up

IP route add network command examples

ip route add {NETWORK/MASK} via {GATEWAYIP}
ip route add {NETWORK/MASK} dev {DEVICE}
ip route add default {NETWORK/MASK} dev {DEVICE}
ip route add default {NETWORK/MASK} via {GATEWAYIP}