Auteur Sujet: Enormément d'interfaces réseaux (Lu 1358 fois)

Paul! · « **le:** 11 décembre 2021 à 14:42:45 »

Bonjour,
Ayant un serveur sous linux, je trouve que j'ai beaucoup d'interface réseaux, sachant que j'ai wireguard et docker.
Voici le résultat de la commande ip a :
1: lo: <LOOPBACK,UP,LOWER_UP> 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
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 54:e1:ad:8b:a9:d7 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.100/24 brd 192.168.1.255 scope global enp1s0
valid_lft forever preferred_lft forever
inet6 2a01:cb18:8204:fd00:56e1:adff:fe8b:a9d7/64 scope global dynamic mngtmpaddr
valid_lft 1762sec preferred_lft 562sec
inet6 fe80::56e1:adff:fe8b:a9d7/64 scope link
valid_lft forever preferred_lft forever
3: br-425fae0e346b: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
link/ether 02:42:5f:83:45:10 brd ff:ff:ff:ff:ff:ff
inet 172.19.0.1/16 brd 172.19.255.255 scope global br-425fae0e346b
valid_lft forever preferred_lft forever
inet6 fe80::42:5fff:fe83:4510/64 scope link
valid_lft forever preferred_lft forever
4: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default
link/ether 02:42:e2:4d:e7:d8 brd ff:ff:ff:ff:ff:ff
inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
valid_lft forever preferred_lft forever
5: br-d53e4d585276: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
link/ether 02:42:0e:fb:43:c1 brd ff:ff:ff:ff:ff:ff
inet 172.18.0.1/16 brd 172.18.255.255 scope global br-d53e4d585276
valid_lft forever preferred_lft forever
inet6 fe80::42:eff:fefb:43c1/64 scope link
valid_lft forever preferred_lft forever
7: vethd2dd88e@if6: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-d53e4d585276 state UP group default
link/ether 7a:dd:13:a5:ae:41 brd ff:ff:ff:ff:ff:ff link-netnsid 3
inet6 fe80::78dd:13ff:fea5:ae41/64 scope link
valid_lft forever preferred_lft forever
9: veth5f6d14e@if8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-425fae0e346b state UP group default
link/ether 3a:5f:4f:2b:3e:dc brd ff:ff:ff:ff:ff:ff link-netnsid 9
inet6 fe80::385f:4fff:fe2b:3edc/64 scope link
valid_lft forever preferred_lft forever
11: veth292121f@if10: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-d53e4d585276 state UP group default
link/ether 92:9a:73:42:76:94 brd ff:ff:ff:ff:ff:ff link-netnsid 6
inet6 fe80::909a:73ff:fe42:7694/64 scope link
valid_lft forever preferred_lft forever
13: vethd08635a@if12: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-425fae0e346b state UP group default
link/ether 0a:f3:23:02:9a:76 brd ff:ff:ff:ff:ff:ff link-netnsid 10
inet6 fe80::8f3:23ff:fe02:9a76/64 scope link
valid_lft forever preferred_lft forever
15: veth72df675@if14: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-425fae0e346b state UP group default
link/ether 22:5a:0c:56:ed:31 brd ff:ff:ff:ff:ff:ff link-netnsid 3
inet6 fe80::205a:cff:fe56:ed31/64 scope link
valid_lft forever preferred_lft forever
17: veth433d6f8@if16: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-d53e4d585276 state UP group default
link/ether ce:3e:77:8e:b3:fe brd ff:ff:ff:ff:ff:ff link-netnsid 4
inet6 fe80::cc3e:77ff:fe8e:b3fe/64 scope link
valid_lft forever preferred_lft forever
19: veth65038d4@if18: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-425fae0e346b state UP group default
link/ether de:b7:d8:50:4f:51 brd ff:ff:ff:ff:ff:ff link-netnsid 6
inet6 fe80::dcb7:d8ff:fe50:4f51/64 scope link
valid_lft forever preferred_lft forever
21: veth853b458@if20: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-d53e4d585276 state UP group default
link/ether d6:64:fd:08:61:0e brd ff:ff:ff:ff:ff:ff link-netnsid 2
inet6 fe80::d464:fdff:fe08:610e/64 scope link
valid_lft forever preferred_lft forever
23: vethc698f5c@if22: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-d53e4d585276 state UP group default
link/ether 52:4f:25:9c:13:36 brd ff:ff:ff:ff:ff:ff link-netnsid 1
inet6 fe80::504f:25ff:fe9c:1336/64 scope link
valid_lft forever preferred_lft forever
25: veth84bb1ee@if24: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-425fae0e346b state UP group default
link/ether 1a:61:fb:74:db:a9 brd ff:ff:ff:ff:ff:ff link-netnsid 4
inet6 fe80::1861:fbff:fe74:dba9/64 scope link
valid_lft forever preferred_lft forever
27: veth8a448d2@if26: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-d53e4d585276 state UP group default
link/ether 7e:bd:00:7c:80:68 brd ff:ff:ff:ff:ff:ff link-netnsid 0
inet6 fe80::7cbd:ff:fe7c:8068/64 scope link
valid_lft forever preferred_lft forever
29: veth40b5e8a@if28: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-d53e4d585276 state UP group default
link/ether 36:29:7f:72:95:e1 brd ff:ff:ff:ff:ff:ff link-netnsid 7
inet6 fe80::3429:7fff:fe72:95e1/64 scope link
valid_lft forever preferred_lft forever
31: vethfc62247@if30: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-425fae0e346b state UP group default
link/ether 6a:46:44:97:d0:bb brd ff:ff:ff:ff:ff:ff link-netnsid 0
inet6 fe80::6846:44ff:fe97:d0bb/64 scope link
valid_lft forever preferred_lft forever
33: vethbd67ff0@if32: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-d53e4d585276 state UP group default
link/ether 5a:28:e5:f3:6e:64 brd ff:ff:ff:ff:ff:ff link-netnsid 8
inet6 fe80::5828:e5ff:fef3:6e64/64 scope link
valid_lft forever preferred_lft forever
35: veth9ad0b86@if34: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-425fae0e346b state UP group default
link/ether 8e:db:87:21:07:2a brd ff:ff:ff:ff:ff:ff link-netnsid 7
inet6 fe80::8cdb:87ff:fe21:72a/64 scope link
valid_lft forever preferred_lft forever
37: veth6d7f229@if36: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-d53e4d585276 state UP group default
link/ether d6:9c:8b:5d:86:8b brd ff:ff:ff:ff:ff:ff link-netnsid 5
inet6 fe80::d49c:8bff:fe5d:868b/64 scope link
valid_lft forever preferred_lft forever
39: veth9c2990b@if38: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-425fae0e346b state UP group default
link/ether 92:2e:9c:28:22:b8 brd ff:ff:ff:ff:ff:ff link-netnsid 8
inet6 fe80::902e:9cff:fe28:22b8/64 scope link
valid_lft forever preferred_lft forever
41: vethd0bd8de@if40: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-d53e4d585276 state UP group default
link/ether 3a:19:b4:83:61:68 brd ff:ff:ff:ff:ff:ff link-netnsid 9
inet6 fe80::3819:b4ff:fe83:6168/64 scope link
valid_lft forever preferred_lft forever
43: vethaa4ca03@if42: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-d53e4d585276 state UP group default
link/ether 76:6a:3c:8c:51:9d brd ff:ff:ff:ff:ff:ff link-netnsid 10
inet6 fe80::746a:3cff:fe8c:519d/64 scope link
valid_lft forever preferred_lft forever

FloBaoti · « **Réponse #1 le:** 11 décembre 2021 à 14:45:23 »

Ce sont les interfaces virtuelles crées par Docker ou autre système de Virtu/container. Toutes les veth* sont dans 2 bridge (switch virtuel).

Par contre je ne vois pas d'interface Wireguard... (caractérisée par l'absence de ligne "link/ether" puisqu'il n'y a pas d'ethernet avec Wireguard)

Paul! · « **Réponse #2 le:** 11 décembre 2021 à 14:46:33 »

Oui j'ai oublié de préciser que je ne l'avait pas encore configuré

Paul! · « **Réponse #3 le:** 11 décembre 2021 à 14:47:28 »

Donc tout ceci est normal ?

FloBaoti · « **Réponse #4 le:** 11 décembre 2021 à 14:54:06 »

A priori oui, tout dépend du nombre de container actuellement allumés. J'espère, j'imagine que Docker doit nettoyer les interfaces veth* quand le container est éteint.

Paul! · « **Réponse #5 le:** 11 décembre 2021 à 16:03:33 »

D'accord.
Merci beaucoup de votre patiente