Getting D-Link DWL-520 Wireless Working

Spent an hour or two yesterday getting my D-Link DWL-520 wireless NIC working under Gentoo. I found a Howto at this site, which worked great, except it didn't mention what iwconfig commands I needed, saying only that "[t]he sequencing of commands will vary by network". Googling for "dwl-520 iwconfig" took me to the hostap mailing list, and the following commands:

ifconfig wlan0 up

iwconfig wlan0 mode managed

iwconfig wlan0 essid "your-essid-here"

ifconfig wlan0 192.168.1.100

ifconfig wlan0 up

... and now I'm online. Whee!