1 Install wireless_tools.

2 Install ipw2100(the wireless modules).

Then modify /etc/rc.conf ,add ipw2100 to the MODULES line,and eth1 to the INTERFACES line,add eth1="dhcp"(to use dhcp) blow eth0="".

3 Modify /etc/conf.d/wireless as blow

wlan_eth1="eth1 mode managed essid default"
WLAN_INTERFACES=(eth1)


Set the firest line to fit your network.
4 Reboot.
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