is this possible?

Questions about WIFI networks and devices
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Joined: Mon Dec 18, 2017 4:02 am

is this possible?

Postby vector81 » Mon Dec 18, 2017 4:09 am

Hello everyone, I'm new to the forum. I just installed Mint on my dad's laptop. Everything went smoothly, except for wireless configuration. After some troubles I managed to have the wifi working. But I discovered a strange thing. How is it possible that with two different commands I have two contrasting results? I post here results from terminal.

Code: Select all

pc-casa casa # iwconfig
enp4s0    no wireless extensions.

lo        no wireless extensions.

wlo1      IEEE 802.11  ESSID:"Aliceasa" 
          Mode:Managed  Frequency:2.457 GHz  Access Point: 60:E3:27:A7:1D:E6   
          Bit Rate=150 Mb/s   Tx-Power=20 dBm   
          Retry short limit:7   RTS thr=2347 B   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=60/70  Signal level=-50 dBm 
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:188   Missed beacon:0


Code: Select all

 pc-casa casa # lsusb; lshw -c net
Bus 002 Device 003: ID 04f2:b40e Chicony Electronics Co., Ltd HP Truevision HD camera
Bus 002 Device 002: ID 0438:7900 Advanced Micro Devices, Inc.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 0438:7900 Advanced Micro Devices, Inc.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 002: ID 3938:1031 
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
       description: Wireless interface
       product: RTL8188EE Wireless Network Adapter
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: wlo1
       version: 01
       serial: 9c:ad:97:36:07:9e
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rtl8188ee driverversion=4.10.0-42-generic firmware=N/A ip= latency=0 link=yes multicast=yes wireless=IEEE 802.11
       resources: irq:44 ioport:3000(size=256) memory:f0c00000-f0c03fff
       description: Ethernet interface
       product: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:04:00.0
       logical name: enp4s0
       version: 07
       serial: 6c:c2:17:e4:12:ca
       size: 10Mbit/s
       capacity: 100Mbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8106e-1_0.0.1 06/29/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:33 ioport:2000(size=256) memory:f0b00000-f0b00fff memory:f0800000-f0803fff

after the first command iwconfig, I see no wireless extension; after the second commnd I can see the wireless adapter. Can anybody give me a little explanation? Thank you to all those will me with this.

Level 17
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Joined: Fri Feb 21, 2014 8:17 am

Re: is this possible?

Postby JeremyB » Mon Dec 18, 2017 6:50 am

Look at the wlo1 results from iwconfig, wlo1 is the wireless device, enp4s0 is ethernet and lo is loopback.
If you wish to learn about what loopback is

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