[~]$ ip link 1: lo: 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: enp0s31f6: mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000 link/ether b0:7b:25:1a:bc:10 brd ff:ff:ff:ff:ff:ff [~]$ ip a 1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever 2: enp0s31f6: mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 link/ether b0:7b:25:1a:bc:10 brd ff:ff:ff:ff:ff:ff inet 172.21.65.102/20 brd 172.21.79.255 scope global dynamic noprefixroute enp0s31f6 valid_lft 82002sec preferred_lft 82002sec [~]$ ip route default via 172.21.64.1 dev enp0s31f6 proto dhcp metric 100 default via 172.21.64.1 dev enp0s31f6 proto dhcp src 172.21.65.102 metric 1024 172.21.64.0/20 dev enp0s31f6 proto kernel scope link src 172.21.65.102 metric 100 172.21.64.1 dev enp0s31f6 proto dhcp scope link src 172.21.65.102 metric 1024 [~]$ ss -tup Netid State Recv-Q Send-Q Local Address:Port Peer Address:Port Process udp ESTAB 0 0 172.21.65.90%enp0s31f6:bootpc 172.21.0.77:bootps tcp ESTAB 0 0 172.21.65.90:33498 172.21.0.201:ldaps tcp ESTAB 0 0 172.21.65.90:38159 172.21.0.206:1010 tcp ESTAB 0 0 172.21.65.90:936 172.21.0.206:nfs [~]$ ss -tupn Netid State Recv-Q Send-Q Local Address:Port Peer Address:Port Process udp ESTAB 0 0 172.21.65.90%enp0s31f6:68 172.21.0.77:67 tcp ESTAB 0 0 172.21.65.90:33498 172.21.0.201:636 tcp ESTAB 0 0 172.21.65.90:38159 172.21.0.206:1010 tcp ESTAB 0 0 172.21.65.90:936 172.21.0.206:2049 [~]$ ss -tup # après lancement de firefox Netid State Recv-Q Send-Q Local Address:Port Peer Address:Port Process udp ESTAB 0 0 172.21.65.102%enp0s31f6:bootpc 172.21.0.78:bootps tcp ESTAB 0 0 172.21.65.102:47354 172.21.0.52:3128 users:(("firefox-bin",pid=3656,fd=144)) tcp ESTAB 0 0 172.21.65.102:47142 172.21.0.52:3128 users:(("firefox-bin",pid=3656,fd=121)) tcp ESTAB 0 0 172.21.65.102:47122 172.21.0.52:3128 users:(("firefox-bin",pid=3656,fd=69)) tcp ESTAB 0 0 172.21.65.102:47214 172.21.0.52:3128 users:(("firefox-bin",pid=3656,fd=123)) tcp ESTAB 0 0 172.21.65.102:46604 172.21.0.52:3128 users:(("firefox-bin",pid=3656,fd=129)) tcp ESTAB 0 0 172.21.65.102:47138 172.21.0.52:3128 users:(("firefox-bin",pid=3656,fd=119)) tcp ESTAB 0 0 172.21.65.102:47128 172.21.0.52:3128 users:(("firefox-bin",pid=3656,fd=83)) tcp ESTAB 0 0 172.21.65.102:47118 172.21.0.52:3128 users:(("firefox-bin",pid=3656,fd=63)) tcp ESTAB 0 0 172.21.65.102:47116 172.21.0.52:3128 users:(("firefox-bin",pid=3656,fd=10)) tcp ESTAB 0 0 172.21.65.102:47136 172.21.0.52:3128 users:(("firefox-bin",pid=3656,fd=114)) tcp ESTAB 0 0 172.21.65.102:47130 172.21.0.52:3128 users:(("firefox-bin",pid=3656,fd=93)) tcp ESTAB 0 0 172.21.65.102:47132 172.21.0.52:3128 users:(("firefox-bin",pid=3656,fd=94)) tcp ESTAB 0 0 172.21.65.102:766 172.21.0.206:nfs tcp ESTAB 0 0 172.21.65.102:47126 172.21.0.52:3128 users:(("firefox-bin",pid=3656,fd=81)) tcp ESTAB 0 0 172.21.65.102:47134 172.21.0.52:3128 users:(("firefox-bin",pid=3656,fd=97)) tcp ESTAB 0 0 172.21.65.102:40304 172.21.0.201:ldaps tcp ESTAB 0 0 172.21.65.102:47124 172.21.0.52:3128 users:(("firefox-bin",pid=3656,fd=79)) tcp ESTAB 0 0 172.21.65.102:47120 172.21.0.52:3128 users:(("firefox-bin",pid=3656,fd=68))