Net-tools to iproute2
From Leo's Notes
Last edited on 28 October 2022, at 21:40.
The deprecated net-tools package contains all legacy network tools such as ipconfig, route, arp, etc. Since tools from net-tools are now obsolete, it is best practice to move towards using the replacement commands provided by iproute2.
The following table maps common net-tools based commands to the new iproute2 commands. Note that most iproute2 sub commands can be specified with the shortest unambiguous name (ie. a or addr for address). The unambiguous name is marked in bold.
| Description | Old net-tools
|
New iproute2
|
|---|---|---|
| Show ARP table | arp -n
|
ip neighbour
|
| Show listening ports | netstat -ln
|
ss -ln
|
| Shows routing table | netstat -r
|
ip route
|
| shows network interface counters | netstat -i
|
ip -s link
|
| Show interface group memberships | netstat -g
|
ip maddr
|
| Wireless config | iwconfig
|
iw
|
| IP Tunnel configuration | iptunnel
|
ip tunnel
|
| Shows interfaces based on MAC address | nameif
|
ip link
|
| Shows interface addresses | ifconfig
|
ip address
|
| Bring an interface up or down | ifconfig $interface [up|down]
|
ip link set dev $interface [up|down]
|
Renames eth0 to eth1, where xx:xx:xx:xx:xx:xx is eth0's MAC address
|
nameif eth1 xx:xx:xx:xx:xx:xx
|
ip link set dev eth0 name eth1
|
| Changes interface MAC address | ifconfig eth0 hw ether xx:xx:xx:xx:xx:xx
|
ip link set dev eth0 address xx:xx:xx:xx:xx:xx
|
| Sets the MTU for eth0 to 1500 | ifconfig eth0 mtu 1500
|
ip link set dev eth0 mtu 1500
|
| Change an interface IP address.
Requires remove/add in |
ifconfig $interface $ip [netmask $netmask]
|
ip addr del $ip/$mask dev $interface
|
Adds a secondary IP to an interface. Old net-tools uses interface:X to denote secondary addresses (eg. eth0:0).
|
ifconfig $interface:X $ip [netmask $netmask]
|
ip addr add $ip/$mask dev $interface
|
| Removes the IP address on an interface | ifconfig $interface 0.0.0.0
|
ip addr del $ip/$mask dev $interface
|
| Adds a default gateway | route add default gw $gateway
|
ip route add default via $gateway
|
| Removes a default gateway | route del default gw $gateway
|
ip route del default via $gateway
|
| Adds a static route via a gateway | route add -net $net netmask $netmask gw $gateway
|
ip route add $net/$mask via $gateway
|
| Deletes a static route | route del -net $net gw $gateway netmask $netmask dev $device
|
ip route del $net/$mask via $gateway
|
| Shows routing table | route -n
|
ip route
|
See also
- Some other commands: http://unix.stackexchange.com/questions/152331/how-can-i-create-a-virtual-ethernet-interface-on-a-machine-without-a-physical-ad