You can also get the previous information with the iwlist command. For example,
the following line displays the current bit rate:
iwlist wlan0 rate
wlan0 unknown bit-rate information.
Current Bit Rate=54 Mb/s
If you want an overview how many access points are available, it can also be done with
the iwlist command. It gives you a list of “cells” which looks like this:
iwlist wlan0 scanning
wlan0 Scan completed:
Cell 01 - Address: 00:11:22:33:44:55
Channel:40
Frequency:5.2 GHz (Channel 40)
Quality=67/70 Signal level=-43 dBm
Encryption key: off
ESSID:"Guest"
Bit Rates: 6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s;
24 Mb/s; 36 Mb/s; 48 Mb/s
Mode: Master
Extra:tsf=0000111122223333
Extra: Last beacon: 179ms ago
IE: Unknown: ...
20.7.2 Multiple Network Devices
Modern laptops usually have a network card and a WLAN card. If you congured both
devices with DHCP (automatic address assignment), you may encounter problems with
the name resolution and the default gateway. This is evident from the fact that you can
ping the router but cannot surf the Internet. The Support Database features an article
on this subject at http://old-en.opensuse.org/SDB:Name_Resolution
_Does_Not_Work_with_Several_Concurrent_DHCP_Clients.
20.7.3 Problems with Prism2 Cards
Several drivers are available for devices with Prism2 chips. The various cards work
more or less smoothly with the various drivers. With these cards, WPA is only possible
with the hostap driver. If such a card does not work properly or not at all or you want
to use WPA, read /usr/share/doc/packages/wireless-tools/README
.prism2.
376 Reference
