# /etc/init.d/pcmcia restart Shutting down PCMCIA services: cardmgr (Web host 4 life)
# /etc/init.d/pcmcia restart Shutting down PCMCIA services: cardmgr modules. Starting PCMCIA services: modules cardmgr. Check the /var/log/messages file. You should see some messages at or near the end of this file, describing what happened when the PCMCIA interface was shut down and restarted. If the card starts successfully, these messages will give you a wealth of information, such as the MAC address of the card, valid channels, and the interface that is associated with the card. Here are some examples: kernel: Linux Kernel Card Services 3.1.22 kernel: options: [pci] [cardbus] [pm] kernel: PCI: kernel: wvlan_cs: WaveLAN/IEEE PCMCIA driver v1.0.7 cardmgr[7707]: executing: ‘./network start eth0′ kernel: wvlan_cs: Registered netdevice eth0 kernel: wvlan_cs: Valid channels: 1 2 3 4 5 6 7 8 9 10 11 The previous output shows that the kernel recognizes the PCI card (at IRQ 11). The wvlan_cs module identifies the Orinoco card as a WaveLAN/IEEE Adapter in socket 0. The network script starts an Ethernet interface (eth0). Channels 1 11 can be used for wireless communications. If the wireless LAN interface started properly, you should be able to see the new interface using the ifconfig command, as follows: # ifconfig -a eth0 Link encap:Ethernet HWaddr 00:02:2D:2E:8C:A8 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:4 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 RX bytes:0 (0.0 b) TX bytes:272 (272.0 b) If your wireless LAN interface does not appear to be working, refer to the section Troubleshooting your Wireless LAN at the end of this chapter. If the interface seems to be working, you are ready to tune your wireless LAN card interface and set up TCP/IP to be able to use the interface. Configure wireless cards The Network Configuration window (neat command) the same window that you can use to configure regular wired Ethernet cards can be used to configure the basic options for your wireless LAN cards. Selections within this window let you: Select wireless options Select options that affect the wireless transmission. Configure TCP/IP Add information that allows the wireless transmission to be used to connect the computers to the Internet or other TCP/IP networks. The following sections describe how to use the Network Configuration window to set up your Wireless LAN. Parameter-setting methods that are not available through the Network Configuration window are described in the “Manually Configuring Wireless Cards” section. Likewise, if you don’t have a GNOME, KDE, or other desktop environment installed, skip to that section. Select wireless options To configure the basic options you need to get your wireless LAN working, open the Network Configuration window and edit the wireless interface that appears on the Devices tab. Follow this procedure: 1.
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