[Network Interfaces] So many of them, I don't understand !

  • Hello,


    I run the last version of openmediavault on my DIY NAS, in which I have this motherboard : ASRock H470M-ITX/AC

    On this motherboard, I have 2 ethernets ports (1GBPS and 2,5GBPS) and a wifi card.


    But in the OMV network interface page, I don't understand, there are so many intefaces.

    There is the eno1 which is enabled and blinks when I use the 'identify' button, on which is connected my ethernet cable. Ok.


    But I wanted to simply have and display my 2 ethernet ports + my wifi card. But when I run ip a, or even when I click add, there are more than 10 interfaces.


    Could you please help me understand why, and moreover what do they represent.

    (Bonus question: how can I use my wifi card to make a wifi hotspot ?)


    Thank you for your time.


    -------


    Here is the content of 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: enp2s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000

    link/ether a8:a1:59:52:38:24 brd ff:ff:ff:ff:ff:ff

    3: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000

    link/ether a8:a1:59:52:38:26 brd ff:ff:ff:ff:ff:ff

    inet 192.168.1.140/24 brd 192.168.1.255 scope global dynamic eno1

    valid_lft 42613sec preferred_lft 42613sec

    5: wlp1s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000

    link/ether bc:17:b8:4f:90:1b brd ff:ff:ff:ff:ff:ff

    6: br-1adad1d2b05a: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default

    link/ether 02:42:8f:19:80:0c brd ff:ff:ff:ff:ff:ff

    inet 192.168.112.1/20 brd 192.168.127.255 scope global br-1adad1d2b05a

    valid_lft forever preferred_lft forever

    inet6 fe80::42:8fff:fe19:800c/64 scope link

    valid_lft forever preferred_lft forever

    10: br-bd431c298a53: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default

    link/ether 02:42:2c:13:d2:75 brd ff:ff:ff:ff:ff:ff

    inet 192.168.144.1/20 brd 192.168.159.255 scope global br-bd431c298a53

    valid_lft forever preferred_lft forever

    inet6 fe80::42:2cff:fe13:d275/64 scope link

    valid_lft forever preferred_lft forever

    11: br-c089f8e2a16d: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default

    link/ether 02:42:17:30:12:fd brd ff:ff:ff:ff:ff:ff

    inet 172.28.0.1/16 brd 172.28.255.255 scope global br-c089f8e2a16d

    valid_lft forever preferred_lft forever

    inet6 fe80::42:17ff:fe30:12fd/64 scope link

    valid_lft forever preferred_lft forever

    12: br-ccb0f2bd7582: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default

    link/ether 02:42:6b:db:48:39 brd ff:ff:ff:ff:ff:ff

    inet 172.23.0.1/16 brd 172.23.255.255 scope global br-ccb0f2bd7582

    valid_lft forever preferred_lft forever

    inet6 fe80::42:6bff:fedb:4839/64 scope link

    valid_lft forever preferred_lft forever

    13: docker0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default

    link/ether 02:42:7f:07:1d:8b 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

    inet6 fe80::42:7fff:fe07:1d8b/64 scope link

    valid_lft forever preferred_lft forever

    15: veth403b79c@if14: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master docker0 state UP group default

    link/ether be:3d:f8:cc:5c:8d brd ff:ff:ff:ff:ff:ff link-netnsid 0

    inet6 fe80::bc3d:f8ff:fecc:5c8d/64 scope link

    valid_lft forever preferred_lft forever

    17: vethd310785@if16: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-bd431c298a53 state UP group default

    link/ether fe:ca:60:b8:fd:8e brd ff:ff:ff:ff:ff:ff link-netnsid 13

    inet6 fe80::fcca:60ff:feb8:fd8e/64 scope link

    valid_lft forever preferred_lft forever

    23: vethbc78837@if22: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-1adad1d2b05a state UP group default

    link/ether 5a:eb:aa:2f:ca:cc brd ff:ff:ff:ff:ff:ff link-netnsid 10

    inet6 fe80::58eb:aaff:fe2f:cacc/64 scope link

    valid_lft forever preferred_lft forever

    25: vetha26120a@if24: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-ccb0f2bd7582 state UP group default

    link/ether f2:92:20:ac:50:1a brd ff:ff:ff:ff:ff:ff link-netnsid 6

    inet6 fe80::f092:20ff:feac:501a/64 scope link

    valid_lft forever preferred_lft forever

    33: vethcd1e3a8@if32: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-bd431c298a53 state UP group default

    link/ether f6:ce:bc:9c:54:42 brd ff:ff:ff:ff:ff:ff link-netnsid 9

    inet6 fe80::f4ce:bcff:fe9c:5442/64 scope link

    valid_lft forever preferred_lft forever

    35: veth0e7c635@if34: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master docker0 state UP group default

    link/ether 82:71:23:99:a3:2d brd ff:ff:ff:ff:ff:ff link-netnsid 8

    inet6 fe80::8071:23ff:fe99:a32d/64 scope link

    valid_lft forever preferred_lft forever

    39: veth7ef70a7@if38: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master docker0 state UP group default

    link/ether 7a:88:98:17:09:1c brd ff:ff:ff:ff:ff:ff link-netnsid 7

    inet6 fe80::7888:98ff:fe17:91c/64 scope link

    valid_lft forever preferred_lft forever

    41: veth7745679@if40: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master docker0 state UP group default

    link/ether 2e:e5:29:7c:7c:0b brd ff:ff:ff:ff:ff:ff link-netnsid 11

    inet6 fe80::2ce5:29ff:fe7c:7c0b/64 scope link

    valid_lft forever preferred_lft forever

    43: vethfeb4bc3@if42: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-c089f8e2a16d state UP group default

    link/ether 2a:4d:e9:9b:f1:fd brd ff:ff:ff:ff:ff:ff link-netnsid 14

    inet6 fe80::284d:e9ff:fe9b:f1fd/64 scope link

    valid_lft forever preferred_lft forever

    45: veth50827a6@if44: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-c089f8e2a16d state UP group default

    link/ether 96:07:ae:33:a8:68 brd ff:ff:ff:ff:ff:ff link-netnsid 15

    inet6 fe80::9407:aeff:fe33:a868/64 scope link

    valid_lft forever preferred_lft forever

    53: veth08dd8ed@if52: <BROADCAST,MULTICAST> mtu 1500 qdisc noqueue master docker0 state DOWN group default

    link/ether fa:ee:df:96:cb:bb brd ff:ff:ff:ff:ff:ff link-netnsid 5

    55: vethb7134b2@if54: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master docker0 state UP group default

    link/ether 36:3e:25:74:b4:48 brd ff:ff:ff:ff:ff:ff link-netnsid 12

    inet6 fe80::343e:25ff:fe74:b448/64 scope link

    valid_lft forever preferred_lft forever

    59: vethd92e280@if58: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master docker0 state UP group default

    link/ether ba:d1:48:3e:83:61 brd ff:ff:ff:ff:ff:ff link-netnsid 4

    inet6 fe80::b8d1:48ff:fe3e:8361/64 scope link

    valid_lft forever preferred_lft forever

    79: veth978d508@if78: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-ccb0f2bd7582 state UP group default

    link/ether 76:da:c9:d5:25:22 brd ff:ff:ff:ff:ff:ff link-netnsid 16

    inet6 fe80::74da:c9ff:fed5:2522/64 scope link

    valid_lft forever preferred_lft forever

    81: veth01300ba@if80: <BROADCAST,MULTICAST> mtu 1500 qdisc noqueue master br-ccb0f2bd7582 state DOWN group default

    link/ether 62:08:f7:89:d4:bf brd ff:ff:ff:ff:ff:ff link-netnsid 1

    83: veth1870300@if82: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-ccb0f2bd7582 state UP group default

    link/ether f6:88:0b:d4:02:71 brd ff:ff:ff:ff:ff:ff link-netnsid 2

    inet6 fe80::f488:bff:fed4:271/64 scope link

    valid_lft forever preferred_lft forever




  • Don't know about creating a wi-fi hotspot.

    But the long list of interfaces is typical and perfectly normal. There's the loopback interface "lo" (127.0.0.1), Docker private networks, bridge interfaces for networking between VMs and the host, etc.

    The simple answer is: don't worry about the many interfaces. Just work with the ones you know (Ethernet and wi-fi).

    Looks like the Ethernet ones are eno1 and enp2s0, and your wi-fi is wlp1s0.

  • Oh okay, thank you for this simple response.


    For the wifi point, I thought I could make a bridge by using my second ethernet linked to the router + wifi card (hotspot) to let the connection go through the server without mixing this up with the other ethernet which puropose is only to manage the NAS itself.


    Idk if I'm clear or if this is even possible but I'd be looking for something like this.


    Thanks again though.

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