ip -c addr list
ou
ip -c a
profes@B0:~$ ip -c link list
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp3s2: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN mode DEFAULT group default qlen 1000
link/ether d8:eb:97:f3:ad:e6 brd ff:ff:ff:ff:ff:ff
3: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
link/ether 34:17:eb:b1:94:57 brd ff:ff:ff:ff:ff:ff
profes@B0:~$
profes@B0:~$ ip neigh list
172.22.1.1 dev eno1 lladdr 00:1b:2f:2e:d1:ed STALE
172.22.7.1 dev eno1 lladdr 60:36:dd:e7:62:01 REACHABLE
172.22.1.13 dev eno1 lladdr 00:15:99:9b:a0:cc STALE
profes@B0:~$ ping 172.22.1.2
PING 172.22.1.2 (172.22.1.2) 56(84) bytes of data.
64 bytes from 172.22.1.2: icmp_seq=1 ttl=64 time=0.379 ms
64 bytes from 172.22.1.2: icmp_seq=2 ttl=64 time=0.247 ms
^C
--- 172.22.1.2 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1023ms
rtt min/avg/max/mdev = 0.247/0.313/0.379/0.066 ms
profes@B0:~$ ip neigh list
172.22.1.2 dev eno1 lladdr 10:bf:48:b9:f4:e9 REACHABLE
172.22.1.1 dev eno1 lladdr 00:1b:2f:2e:d1:ed STALE
172.22.7.1 dev eno1 lladdr 60:36:dd:e7:62:01 REACHABLE
172.22.1.13 dev eno1 lladdr 00:15:99:9b:a0:cc STALE
profes@B0:~$
work@bruno-PORTEGE-R930:~$ ip neigh list
172.22.1.1 dev wlp4s0 lladdr 00:1b:2f:2e:d1:ed REACHABLE
172.22.1.13 dev wlp4s0 lladdr 00:15:99:9b:a0:cc STALE
172.22.16.5 dev wlp4s0 lladdr 34:17:eb:b1:94:57 STALE
172.22.2.12 dev wlp4s0 lladdr 00:22:15:95:99:aa STALE
work@bruno-PORTEGE-R930:~$ sudo ip neigh del 172.22.2.12 dev wlp4s0
work@bruno-PORTEGE-R930:~$ ip neigh list
172.22.1.1 dev wlp4s0 lladdr 00:1b:2f:2e:d1:ed REACHABLE
172.22.1.13 dev wlp4s0 lladdr 00:15:99:9b:a0:cc STALE
172.22.16.5 dev wlp4s0 lladdr 34:17:eb:b1:94:57 STALE
work@bruno-PORTEGE-R930:~$
work@bruno-PORTEGE-R930:~$ ip neigh list
172.22.1.1 dev wlp4s0 lladdr 00:1b:2f:2e:d1:ed REACHABLE
172.22.1.13 dev wlp4s0 lladdr 00:15:99:9b:a0:cc STALE
172.22.16.5 dev wlp4s0 lladdr 34:17:eb:b1:94:57 STALE
172.22.2.12 dev wlp4s0 lladdr 00:22:15:95:99:aa STALE
work@bruno-PORTEGE-R930:~$ sudo ip neigh del 172.22.2.12 dev wlp4s0
work@bruno-PORTEGE-R930:~$ ip neigh list
172.22.1.1 dev wlp4s0 lladdr 00:1b:2f:2e:d1:ed DELAY
172.22.1.13 dev wlp4s0 lladdr 00:15:99:9b:a0:cc STALE
172.22.16.5 dev wlp4s0 lladdr 34:17:eb:b1:94:57 STALE
work@bruno-PORTEGE-R930:~$ sudo ip neigh add 172.22.2.12 dev wlp4s0
Error: No link layer address given.
work@bruno-PORTEGE-R930:~$ ip neigh list
172.22.1.1 dev wlp4s0 lladdr 00:1b:2f:2e:d1:ed REACHABLE
172.22.1.13 dev wlp4s0 lladdr 00:15:99:9b:a0:cc STALE
172.22.16.5 dev wlp4s0 lladdr 34:17:eb:b1:94:57 STALE
172.22.2.12 dev wlp4s0 lladdr 00:22:15:95:99:aa STALE
work@bruno-PORTEGE-R930:~$
Flush arp !
work@bruno-PORTEGE-R930:~$ ip neigh list
172.22.1.1 dev wlp4s0 lladdr 00:1b:2f:2e:d1:ed REACHABLE
172.22.1.13 dev wlp4s0 lladdr 00:15:99:9b:a0:cc STALE
172.22.16.5 dev wlp4s0 lladdr 34:17:eb:b1:94:57 STALE
172.22.2.12 dev wlp4s0 lladdr 00:22:15:95:99:aa STALE
work@bruno-PORTEGE-R930:~$ ip neigh flush dev wlp4s0
Failed to send flush request: Operation not permitted
work@bruno-PORTEGE-R930:~$ sudo ip neigh flush dev wlp4s0
work@bruno-PORTEGE-R930:~$ ip neigh list
172.22.1.1 dev wlp4s0 lladdr 00:1b:2f:2e:d1:ed REACHABLE
work@bruno-PORTEGE-R930:~$
guilbert@Linux1:~$ ifconfig
eth2 Link encap:Ethernet HWaddr 00:50:04:6a:a6:ed
inet adr:10.175.102.180 Bcast:10.175.255.255 Masque:255.255.0.0
adr inet6: fe80::250:4ff:fe6a:a6ed/64 Scope:Lien
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Packets reçus:13183399 erreurs:0 :1 overruns:3 frame:0
TX packets:6552838 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:3728506791 (3.7 GB) Octets transmis:571087470 (571.0 MB)
Interruption:18 Adresse de base:0xc000
eth3 Link encap:Ethernet HWaddr 00:1b:2f:2e:d1:ed
inet adr:172.22.1.1 Bcast:172.22.255.255 Masque:255.255.0.0
adr inet6: fe80::21b:2fff:fe2e:d1ed/64 Scope:Lien
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Packets reçus:6591835 erreurs:0 :0 overruns:0 frame:0
TX packets:12017266 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:576549328 (576.5 MB) Octets transmis:3641906480 (3.6 GB)
Interruption:17 Adresse de base:0xe000
lo Link encap:Boucle locale
inet adr:127.0.0.1 Masque:255.0.0.0
adr inet6: ::1/128 Scope:Hôte
UP LOOPBACK RUNNING MTU:16436 Metric:1
Packets reçus:6944 erreurs:0 :0 overruns:0 frame:0
TX packets:6944 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:0
Octets reçus:588810 (588.8 KB) Octets transmis:588810 (588.8 KB)
guilbert@Linux1:~$
guilbert@Linux1:~$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:50:04:6a:a6:ed brd ff:ff:ff:ff:ff:ff
inet 10.175.102.180/16 brd 10.175.255.255 scope global eth2
inet6 fe80::250:4ff:fe6a:a6ed/64 scope link
valid_lft forever preferred_lft forever
3: eth3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:1b:2f:2e:d1:ed brd ff:ff:ff:ff:ff:ff
inet 172.22.1.1/16 brd 172.22.255.255 scope global eth3
inet6 fe80::21b:2fff:fe2e:d1ed/64 scope link
valid_lft forever preferred_lft forever
guilbert@Linux1:~$
Nettoyer la config réseau
ip addr flush dev enpxxx
Ajouter une adresse
ip addr add dev enpxx ip mask
exemple:
ip addr add dev eno1 192.168.0.4 255.255.255.0
Effacer une ip
ip addr del dev eno1 192.168.0.4 255.255.255.255.0