linux 下 realtek 网卡安装readme 文件

<Linux device driver for Realtek Ethernet controllers>

 This is the Linux device driver released for RealTek RTL8101E, RTL8102E(L) and RTL8103E(L), the Fast Ethernet controller with PCI-Express interface.

<Requirements>

 - kernel source tree (supported Linux kernel 2.6.x and 2.4.x)
 - For linux kernel 2.4.x, this driver supports linux kernel 2.4.20 and latter.
 - compiler/binutils for kernel compilation

<Quick install with proper kernel settings>
 Check whether the built-in driver, r8169.ko (or r8169.o for kernel 2.4.x), is installed.
  # lsmod | grep r8169

 If it is installed, please remove it.
  # rmmod r8169
 note: If the built-in driver cannot removed by rmmod, please edit /etc/modprobe.conf and comment 'alias eth0 r8169'. Then, remmove it again or reboot your computer.

 Unpack the tarball :
  # tar vjxf r8101-1.aaa.bb.tar.bz2

 Change to the directory:
  # cd r8101-1.aaa.bb

 If you are running the target kernel, then you should be able to do :

  # make clean modules (as root or with sudo)
  # make install
  # depmod -a
  # insmod ./src/r8101.ko (or r8101.o for kernel 2.4.x)

 You can check whether the driver is loaded by using following commands.

  # lsmod | grep r8101
  # ifconfig -a

 If there is a device name, ethX, shown on the monitor, the linux
 driver is loaded. Then, you can use the following command to activate
 the ethX.

  # ifconfig ethX

  ,where X=0,1,2,...

 
<Set the network related information>
 1. Set manually
  a. Set the IP address of your machine.

   # ifconfig ethX "the IP address of your machine"

  b. Set the IP address of DNS.

     Insert the following configuration in /etc/resolv.conf.
  
   nameserver "the IP address of DNS"

  c. Set the IP address of gateway.

   # route add default gw "the IP address of gateway"

 2. Set by doing configurations in /etc/sysconfig/network-scripts
    /ifcfg-ethX for Redhat and Fedora, or /etc/sysconfig/network
    /ifcfg-ethX for SuSE. There are two examples to set network
    configurations.

  a. Fixed IP address:
   DEVICE=eth0
   BOOTPROTO=static
   ONBOOT=yes
   TYPE=ethernet
   NETMASK=255.255.255.0
   IPADDR=192.168.1.1
   GATEWAY=192.168.1.254
   BROADCAST=192.168.1.255

  b. DHCP:
   DEVICE=eth0
   BOOTPROTO=dhcp
   ONBOOT=yes 

<Modify the MAC address>
 There are two ways to modify the MAC address of the NIC.
 1. Use ifconfig:

  # ifconfig ethX hw ether YY:YY:YY:YY:YY:YY

    ,where X is the device number assigned by Linux kernel, and
    YY:YY:YY:YY:YY:YY is the MAC address assigned by the user.

 2. Use ip:

  # ip link set ethX address YY:YY:YY:YY:YY:YY

    ,where X is the device number assigned by Linux kernel, and
    YY:YY:YY:YY:YY:YY is the MAC address assigned by the user.

<Force Link Status>

 1. Force the link status when insert the driver.

    If the user is in the path ~/r8101, the link status can be forced
    to one of the 4 modes as following command.

  # insmod ./src/r8101.ko speed=SPEED_MODE duplex=DUPLEX_MODE autoneg=NWAY_OPTION

  ,where
   SPEED_MODE = 100 for 100Mbps
     = 10 for 10Mbps
   DUPLEX_MODE = 0 for half-duplex
     = 1 for full-duplex
   NWAY_OPTION = 0 for auto-negotiation off (true force)
     = 1 for auto-negotiation on (nway force)
  For example:

   # insmod ./src/r8101.ko speed=100 duplex=0 autoneg=1

  will force PHY to operate in 100Mpbs Half-duplex(nway force).

 2. Force the link status by using ethtool.
  a. Insert the driver first.
  b. Make sure that ethtool exists in /sbin.
  c. Force the link status as the following command.

   # ethtool -s ethX speed SPEED_MODE duplex DUPLEX_MODE autoneg NWAY_OPTION

   ,where
    SPEED_MODE = 100 for 100Mbps
      = 10 for 10Mbps
    DUPLEX_MODE = half for half-duplex
      = full for full-duplex
    NWAY_OPTION = off for auto-negotiation off (true force)
      = on for auto-negotiation on (nway force)

  For example:
  
   # ethtool -s eth0 speed 100 duplex full autoneg on

  will force PHY to operate in 100Mpbs Full-duplex(nway force).

<Jumbo Frame>
 RTL8101E, RTL8102E and RTL8103E do not support Jumbo Frame.