[How-To] configure and setup USB Alcatel LTE Link Key IK40 and Alcatel LTE MW40V

check you device with lsusb command (usbutils package):

:~# lsusb
Bus 001 Device 005: ID 1bbb:0195 T & A Mobile Phones

NOTE: change static IP address of your LAN to 10.0.0.1 instead of 192.168.1.1. Because on this address 192.168.1.1 you will have administration page of your LTE USB modem.

Install the following packages:

opkg update
opkg install kmod-usb-net-rndis usb-modeswitch

edit the /etc/config/network file and put the following at the end:

config interface 'lte'
	option ifname 'usb0'
	option proto 'dhcp'
	option apn 'internet'

Open file /etc/config/firewall and locate config zone , where under it should be: option name 'wan' and add lte

config zone
	option name 'wan'
	option input 'REJECT'
	option output 'ACCEPT'
	option forward 'REJECT'
	option masq '1'
	option mtu_fix '1'
	option network 'lte wan wan6'

save, reboot and it's done.