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nmcli：当两个接入点具有相同 SSID 时选择 BSSID

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nmcli：当两个接入点具有相同 SSID 时选择 BSSID

nmcli当有两个具有相同 SSID 的接入点时，我无法连接正确的接入点。理想情况下，网络管理器应连接到信号最强的网络管理器，但它似乎总是连接到同一个信号。我什至无法通过指定 BSSID 来强制它连接到我想要的连接：

$ nmcli -f in-use,ssid,bssid,signal,rate,bars  dev wifi
IN-USE  SSID                       BSSID              SIGNAL  RATE        BARS 
        InternodeAC79C7            20:B0:01:AC:79:C7  92      130 Mbit/s  ▂▄▆█ 
        InternodeAC79C7-5G         22:B0:01:AC:79:CF  92      405 Mbit/s  ▂▄▆█ 
*       InternodeAC79C7            24:65:11:64:BA:93  72      270 Mbit/s  ▂▄▆_ 
$ nmcli device wifi connect 20:B0:01:AC:79:C7
Device 'wlp0s20f3' successfully activated with 'f1c36a2e-8fb0-4f88-95a7-40b9ddc32056'.
$ nmcli -f in-use,ssid,bssid,signal,rate,bars  dev wifi
IN-USE  SSID                       BSSID              SIGNAL  RATE        BARS 
        InternodeAC79C7            20:B0:01:AC:79:C7  92      130 Mbit/s  ▂▄▆█ 
        InternodeAC79C7-5G         22:B0:01:AC:79:CF  89      405 Mbit/s  ▂▄▆█ 
*       InternodeAC79C7            24:65:11:64:BA:93  62      270 Mbit/s  ▂▄▆_

请注意，网络管理器仍然连接到24:65:11:64:BA:93。

其他可能相关的设置信息

  • 我正在运行 Debian 测试 bullseye/sid
  • 内核版本 
    $ uname -a
Linux binky 5.8.0-2-amd64 #1 SMP Debian 5.8.10-1 (2020-09-19) x86_64 GNU/Linux
  • 内容/etc/NetworkManager/system-connections/InternodeAC79C7.nmconnection 
    [connection]
id=InternodeAC79C7
uuid=f1c36a2e-8fb0-4f88-95a7-40b9ddc32056
type=wifi
interface-name=wlp0s20f3
permissions=user:dcpurton:;
timestamp=1601538860

[wifi]
mac-address-blacklist=
mode=infrastructure
seen-bssids=20:B0:01:AC:79:C7;24:65:11:64:BA:93;
ssid=InternodeAC79C7

[wifi-security]
key-mgmt=wpa-psk
psk=*****

[ipv4]
dns-search=
method=auto

[ipv6]
addr-gen-mode=stable-privacy
dns-search=
ip6-privacy=0
method=auto

[proxy]
  • 无线适配器 
    $ sudo lspci -v
00:14.3 Network controller: Intel Corporation Cannon Point-LP CNVi [Wireless-AC] (rev 30)
    Subsystem: Intel Corporation Cannon Point-LP CNVi [Wireless-AC]
    Flags: bus master, fast devsel, latency 0, IRQ 16, IOMMU group 6
    Memory at c9738000 (64-bit, non-prefetchable) [size=16K]
    Capabilities: [c8] Power Management version 3
    Capabilities: [d0] MSI: Enable- Count=1/1 Maskable- 64bit+
    Capabilities: [40] Express Root Complex Integrated Endpoint, MSI 00
    Capabilities: [80] MSI-X: Enable+ Count=16 Masked-
    Capabilities: [100] Null
    Capabilities: [14c] Latency Tolerance Reporting
    Capabilities: [164] Vendor Specific Information: ID=0010 Rev=0 Len=014 <?>
    Kernel driver in use: iwlwifi
    Kernel modules: iwlwifi
  • 笔记本电脑：联想 ThinkPad X390 20Q0

答案1

看来有两个问题。

  1. bssid的参数实际上nmcli并没有达到我的预期。它仅用于选择 SSID，不会传递给wpa_supplicant.看问题#465
  2. NetworkManager 似乎没有选择信号最强的 AP。不管怎样（对我来说），它总是连接到同一个。看问题#474。我想这两个问题可能是相关的。

可以用来wpa_cli切换接入点：

$ sudo wpa_cli list_networks
Selected interface 'wlp0s20f3'
network id / ssid / bssid / flags
0   InternodeAC79C7 any [CURRENT]
$ sudo wpa_cli bssid 0 20:B0:01:AC:79:C7
Selected interface 'wlp0s20f3'
OK
$ sudo wpa_cli reassociate
Selected interface 'wlp0s20f3'
OK
$ sudo wpa_cli list_networks
Selected interface 'wlp0s20f3'
network id / ssid / bssid / flags
0   InternodeAC79C7 20:b0:01:ac:79:c7   [CURRENT]
$ nmcli -f in-use,ssid,bssid,signal,rate,bars  dev wifi
IN-USE  SSID                       BSSID              SIGNAL  RATE        BARS 
*       InternodeAC79C7            20:B0:01:AC:79:C7  92      130 Mbit/s  ▂▄▆█ 
        InternodeAC79C7-5G         22:B0:01:AC:79:CF  92      405 Mbit/s  ▂▄▆█ 
        InternodeAC79C7            24:65:11:64:BA:93  72      270 Mbit/s  ▂▄▆_

如果我使用 NetworkManager 重新连接，它会恢复为24:65:11:64:BA:93.

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