Instructions for command line usage of WiFi.

[peter@easthope.ca]

The instructions at https://wiki.debian.org/WiFi/HowToUse#Command_Line
required installation of these packages.

libiw30_30_pre9-13_i386.deb
wireless-tools_30_pre9-13_i386.deb
libnl-genl-3-200_3.4.0-1_i386.deb
libnl-3-200_3.4.0-1_i386.deb
iw_5.0.1-1_i386.deb

This stanza was added in /etc/network/interfaces
allow-hotplug wlxe894f6248352
iface wlxe894f6248352 inet dhcp
	wpa2-ssid Alcatel
	wpa2-psk  <thePassword>

ifup wlxe894f6248352
gives
ifup: interface wlxe894f6248352 already configured

iw wlxe894f6248352 link
gives
Not connected.

ip a
gives
  ...
4: wlxe894f6248352: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc 
mq state DOWN group default qlen 1000
    link/ether e8:94:f6: ... brd ff:ff:ff ...

Any ideas about this failure?  Additional software needed?

Thanks,                                ... Peter E.