• 无线网卡的查看与配置——iw,iwconfig,ethtool


    摘要:在linux上,我们经常需要把一台笔记本设置成一个共享wifi上网的路由器。如果我们需要把本机配置成一台无线AP,就需要查看网卡的相关信息和进行对应配置。其中iw、iwconfig和ethtool三个命令可以有效帮助我们完成这些问题。


    1. iw


    命令简介: iw - show / manipulate wireless devices and their configuration

    用法:

    $ iw wlan0 info
    Interface wlan0
    ifindex 3
    type managed
    wiphy 2

    其中,wlan0这个无限网卡,设备索引号是3,链接类型是managed(单点对ap的连接模式),wiphy类型是2.


    2.iwconfig


    命令简介: iwconfig - configure a wireless network interface

    用法:

    用法: iwconfig interface [essid {NN|on|off}]
    [nwid {NN|on|off}]
    [mode {managed|ad-hoc|...}
    [freq N.NNNN[k|M|G]]
    [channel N]
    [ap {N|off|auto}]
    [sens N]
    [nick N]
    [rate {N|auto|fixed}]
    [rts {N|auto|fixed|off}]
    [frag {N|auto|fixed|off}]
    [enc {NNNN-NNNN|off}]
    [power {period N|timeout N}]
    [retry {limit N|lifetime N}]
    [txpower N {mW|dBm}]
    [commit]

    示例:

    essid设置:#iwconfig eth0 essid any 允许任何ESSID,也就是混杂模式

    nickname设置:#iwconfig eth0 nickname "My Linux Node"

    工作模式设置:#iwconfig eth0 mode Managed(注意,不是所有的网卡都能支持所有的工作模式)

    3、ethtool


    命令简介: ethtool - query or control network driver and hardware settings

    命令用法:

     

    ethtool ethX //查询ethX网口基本设置
    ethtool –h //显示ethtool的命令帮助(help)
    ethtool –i ethX //查询ethX网口的相关信息
    ethtool –d ethX //查询ethX网口注册性信息
    ethtool –r ethX //重置ethX网口到自适应模式
    ethtool –S ethX //查询ethX网口收发包统计
    ethtool –s ethX [speed 10|100|1000] //设置网口速率10/100/1000M
    [duplex half|full] //设置网口半/全双工
    [autoneg on|off] //设置网口是否自协商
    [port tp|aui|bnc|mii] //设置网口类型
    [phyad N]
    [xcvr internal|exteral]
    [wol p|u|m|b|a|g|s|d...]
    [sopass xx:yy:zz:aa:bb:cc]
    [msglvl N]

    使用实例:

     

    举例:
    0)查看网卡驱动等信息:
    hyk@hyk-linux:~
    $ ethtool -i wlan0
    driver: iwlwifi
    version: 3.10.9
    firmware-version: 39.31.5.1 build 35138
    bus-info: 0000:08:00.0
    supports-statistics: yes
    supports-test: no
    supports-eeprom-access: no
    supports-register-dump: no
    1)[root@linux /]# ethtool eth1
    Settings for eth1:
    Supported ports: [ TP ]
    Supported link modes: 10baseT/Half 10baseT/Full
    100baseT/Half 100baseT/Full
    1000baseT/Full
    Supports auto-negotiation: Yes
    Advertised link modes: 10baseT/Half 10baseT/Full
    100baseT/Half 100baseT/Full
    1000baseT/Full
    Advertised auto-negotiation: Yes
    Speed: 1000Mb/s
    Duplex: Full
    Port: Twisted Pair
    PHYAD: 0
    Transceiver: internal
    Auto-negotiation: on
    Supports Wake-on: umbg
    Wake-on: d
    Link detected: yes
    2)[root@linux /]# ethtool -i eth1
    driver: e1000
    version: 5.0.43-k1
    firmware-version: N/A
    bus-info: 06:08.1
    3)[root@linux /]# ethtool -S eth1
    NIC statistics:
    rx_packets: 58068300
    tx_packets: 87124083
    rx_bytes: 1589713008
    tx_bytes: 2165825901
    rx_errors: 0
    tx_errors: 0
    rx_dropped: 0
    tx_dropped: 0
    multicast: 0
    collisions: 0
    rx_length_errors: 0
    rx_over_errors: 0
    rx_crc_errors: 0
    rx_frame_errors: 0
    rx_fifo_errors: 0
    rx_missed_errors: 0
    tx_aborted_errors: 0
    tx_carrier_errors: 0
    tx_fifo_errors: 0
    tx_heartbeat_errors: 0
    tx_window_errors: 0
    4)[root@linux /]# ethtool -s eth1 autoneg off speed 100 duplex full

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  • 原文地址:https://www.cnblogs.com/pangblog/p/3397871.html
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