Netzwerk Devices anzeigen
ip a
ip link

Netzwerk nach anderen Geräten prüfen
ip neigh

Einzelnes Netzwerk Devices anzeigen
ip link show eth0

Einzelnes Netzwerk Devices einschalten
ip link set dev eth0 up

Einzelnes Netzwerk Devices ausschalten
ip link set dev eth0 down

MAC-Adresse ändern
ip link set dev eth0 address <new_mac_addr>

# ip cheat sheet
# display IP address
ip a
ip a s dev eth0

# link
ip l
ip link show dev eth0

# link statistics
ip -s l
ip -s link show dev eth0

# show arp
ip n
ip neigh show dev eth0

# modify addresses
ip addr add 192.168.1.1/24 dev eth0
ip addr del 192.168.1.1/24 dev eth0

ip link set eth0 up
ip link set eth0 down
ip link set eth0 mtu 9000
ip link set eth0 promisc on          # enable promiscuous mode

# routing
ip r

ip route add default via 192.168.1.1 dev eth0
ip route add 192.168.1.0/24 via 192.168.1.1
ip route add 192.168.1.0/24 dev eth0

ip route del default
ip route delete 192.168.1.0/24 via 192.168.1.1

ip route replace 192.168.1.0/24 dev eth0

ip route get 192.168.1.5

# managing arp table
ip neigh add 192.168.1.1 lladdr 1:2:3:4:5:6 dev eth0
ip neigh del 192.168.1.1 dev eth0
ip neigh replace 192.168.1.1 lladdr 1:2:3:4:5:6 dev eth0

# misc
arping -I eth0 192.168.1.1       # Send ARP request to 192.168.1.1 via interface eth0
arping -D -I eth0 192.168.1.1    # Check for duplicate MAC addresses at 192.168.1.1 on eth0

ethtool -g eth0                  # Display ring buffer for eth0
ethtool -i eth0                  # Display driver information for eth0
ethtool -p eth0                  # Identify eth0 by sight, typically by causing LEDs to blink on the network port
ethtool -S eth0                  # Display network and driver statistics for eth0

ss -a                            # Show all sockets (listening and non-listening)
ss -e                            # Show detailed socket information
ss -o                            # Show timer information
ss -n                            # Do not resolve addresses
ss -p                            # Show process using the socket