show IP addresses

ip address show
ip a s
ip a

show routing table

ip route show
ip r s
ip r

show multicast addresses

ip maddress show
ip maddr s
ip maddr
ip ma s
ip ma
ip m

Output

cisco@px-ubuntu-nw-2:~$ ip maddr s
1:      lo
        inet  224.0.0.1
        inet6 ff02::1
        inet6 ff01::1
2:      ens2
        link  33:33:00:00:00:01
        link  01:00:5e:00:00:01
        link  33:33:ff:01:a0:dd
        link  01:80:c2:00:00:00
        link  01:80:c2:00:00:03
        link  01:80:c2:00:00:0e
        inet  224.0.0.1
        inet6 ff02::1:ff01:a0dd
        inet6 ff02::1 users 2
        inet6 ff01::1

TODO

sudo ip addr add 172.16.1.5/24 dev eth1
sudo ip route del 0.0.0.0/0
sudo ip route add 0.0.0.0/0 via 172.16.1.5

Link up/down

sudo ip link set enp1s0f0 up
sudo ip link set enp1s0f0 down

show IP addresses

ifconfig

show routing table

route

1. 15 Useful "ifconfig" Commands to Configure Network Interface in Linux
2. How to Add or Change the Default Gateway in Linux: 9 Steps

ifconfig eth0 192.168.0.1 netmask 255.255.255.0 broadcast 192.168.0.255
route add default gw 192.168.0.254 eth0

ifconfig eth1 up 10.0.0.10 netmask 255.255.255.252
route add -net 10.0.0.0/16 gw 10.0.0.9 dev eth1
route add -net 192.168.0.0/29 gw 10.0.0.9 dev eth1