這些出現在核心日誌中的意外網路設備是什麼？

我有enp7s0（乙太網）和wlp5s0（wifi）我一直在使用，但是還有一些我不認識的其他網路介面在 dmesg 中定期顯示。它們是什麼，我該如何刪除它們？

$ sudo dmesg -w
[ 5400.052789] device veth517d19f entered promiscuous mode
[ 5400.052861] br-b6747aa2af8f: port 1(veth517d19f) entered blocking state
[ 5400.052862] br-b6747aa2af8f: port 1(veth517d19f) entered forwarding state
[ 5400.213261] eth0: renamed from veth244244e
[ 5400.222378] IPv6: ADDRCONF(NETDEV_CHANGE): veth517d19f: link becomes ready
[ 5568.791784] veth244244e: renamed from eth0
[ 5568.810950] br-b6747aa2af8f: port 1(veth517d19f) entered disabled state
[ 5568.830903] br-b6747aa2af8f: port 1(veth517d19f) entered disabled state
[ 5568.831278] device veth517d19f left promiscuous mode
[ 5568.831280] br-b6747aa2af8f: port 1(veth517d19f) entered disabled state
[ 5568.880757] br-b6747aa2af8f: port 1(veth011f3f5) entered blocking state
[ 5568.880760] br-b6747aa2af8f: port 1(veth011f3f5) entered disabled state
[ 5568.880814] device veth011f3f5 entered promiscuous mode
[ 5568.880962] br-b6747aa2af8f: port 1(veth011f3f5) entered blocking state
[ 5568.880964] br-b6747aa2af8f: port 1(veth011f3f5) entered forwarding state
[ 5569.077840] eth0: renamed from veth6e8382e
[ 5569.093718] IPv6: ADDRCONF(NETDEV_CHANGE): veth011f3f5: link becomes ready
[ 5737.805813] veth6e8382e: renamed from eth0
[ 5737.823318] br-b6747aa2af8f: port 1(veth011f3f5) entered disabled state
[ 5737.843811] br-b6747aa2af8f: port 1(veth011f3f5) entered disabled state
[ 5737.844340] device veth011f3f5 left promiscuous mode
[ 5737.844344] br-b6747aa2af8f: port 1(veth011f3f5) entered disabled state
[ 5737.893657] br-b6747aa2af8f: port 1(vethd8bfbd6) entered blocking state
[ 5737.893661] br-b6747aa2af8f: port 1(vethd8bfbd6) entered disabled state
[ 5737.893736] device vethd8bfbd6 entered promiscuous mode
[ 5737.893886] br-b6747aa2af8f: port 1(vethd8bfbd6) entered blocking state
[ 5737.893890] br-b6747aa2af8f: port 1(vethd8bfbd6) entered forwarding state
[ 5738.172548] eth0: renamed from veth7906981
[ 5738.188736] IPv6: ADDRCONF(NETDEV_CHANGE): vethd8bfbd6: link becomes ready
[ 5906.354088] veth7906981: renamed from eth0
[ 5906.369700] br-b6747aa2af8f: port 1(vethd8bfbd6) entered disabled state
[ 5906.389362] br-b6747aa2af8f: port 1(vethd8bfbd6) entered disabled state
[ 5906.389734] device vethd8bfbd6 left promiscuous mode
[ 5906.389737] br-b6747aa2af8f: port 1(vethd8bfbd6) entered disabled state
[ 5906.443306] br-b6747aa2af8f: port 1(veth7a88bf4) entered blocking state
[ 5906.443309] br-b6747aa2af8f: port 1(veth7a88bf4) entered disabled state
[ 5906.443354] device veth7a88bf4 entered promiscuous mode
[ 5906.443425] br-b6747aa2af8f: port 1(veth7a88bf4) entered blocking state
[ 5906.443426] br-b6747aa2af8f: port 1(veth7a88bf4) entered forwarding state
[ 5906.637888] eth0: renamed from veth9acd0b3
[ 5906.659074] IPv6: ADDRCONF(NETDEV_CHANGE): veth7a88bf4: link becomes ready
[ 6074.517484] veth9acd0b3: renamed from eth0
[ 6074.529161] br-b6747aa2af8f: port 1(veth7a88bf4) entered disabled state
[ 6074.544507] br-b6747aa2af8f: port 1(veth7a88bf4) entered disabled state
[ 6074.544814] device veth7a88bf4 left promiscuous mode
[ 6074.544815] br-b6747aa2af8f: port 1(veth7a88bf4) entered disabled state
[ 6074.582235] br-b6747aa2af8f: port 1(veth7cc8283) entered blocking state
[ 6074.582238] br-b6747aa2af8f: port 1(veth7cc8283) entered disabled state
[ 6074.582284] device veth7cc8283 entered promiscuous mode
[ 6074.582354] br-b6747aa2af8f: port 1(veth7cc8283) entered blocking state
[ 6074.582355] br-b6747aa2af8f: port 1(veth7cc8283) entered forwarding state
[ 6074.771300] eth0: renamed from veth5a7e47a
[ 6074.791442] IPv6: ADDRCONF(NETDEV_CHANGE): veth7cc8283: link becomes ready

$ ip -br -c addr show
lo               UNKNOWN        127.0.0.1/8 ::1/128
enp7s0           UP             10.10.10.1/8 fe80::a66e:xxxx:e22:xxxx/64
wlp5s0           UP             192.168.18.193/24 fe80::d28c:xxxx:6da5:xxxx/64
virbr0           DOWN           192.168.122.1/24
virbr1           DOWN           192.168.39.1/24
lxcbr0           DOWN           10.0.3.1/24
br-e32feb7cbdc6  DOWN           172.23.0.1/16
br-ef8e425d866f  DOWN           172.21.0.1/16
br-0d1de33a9fd1  DOWN           172.18.0.1/16
br-1535ef132d94  DOWN           172.24.0.1/16
br-3daca6071d2e  DOWN           172.20.0.1/16
docker0          DOWN           172.17.0.1/16
br-80a4ad7261ed  DOWN           172.22.0.1/16
br-b6747aa2af8f  UP             172.19.0.1/16 fe80::42:bff:xxxx:xxxx/64
vethed6ff23@if18 UP             fe80::fc36:adff:xxxx:xxxx/64
vethecf0d6f@if38 UP             fe80::c8a6:48ff:xxxx:xxxx/64

我怎麼知道是哪個軟體創建了這些？

您的列表如下所示：

• lo = 環回
• enp7s0 = 乙太網
• lp5s0 = 無線區域網路
• virbr* = 虛擬網橋
• lxcbr* = lxc/lxd
• 碼頭工人* =碼頭工人
• br* = 碼頭橋
• veth* = 虛擬乙太網設備

您可以使用nmcli（網路管理器）

並執行：

$ nmcli device list

為您的docker容器執行：

$ docker network ls

比

$ docker network inspect [USE THE NETWORK ID FROM THE FIRST COMMAND]

試試這個來獲取網路設備的列表：

$ echo /sys/class/net/*

您可以使用udevadm獲取更多資訊：

$ udevadm info -a -p /sys/class/net/[NETWORK DEVICE NAME]

例子：

$ udevadm info -a -p /sys/class/net/enp0s25

使用ip：

$ ip -r link

$ ip -br link

$ ip -br -c link show

$ ip token

$ ip -s -s link show dev docker0

使用lshw：

$ lshw -class network

$ lshw -class network -short

更新

從此手冊頁獲取更多資訊：

• 人 systemd.netdev
• 人 systemd.link
• 人 systemd.network

使用networkctl獲得更多詳細資訊

$ networkctl

$ networkctl status

$ networkctl status --all

引用自：https://unix.stackexchange.com/questions/693006