So I tested it in the shell by unplugging and replugging the stick, waited for it to turn solid blue after the cron job, then ran: # dhclient ue0Īnd sure enough it got a lease. Excellent this what I need, so I figured I could script the same thing by simply executing dhclient ue0 and simply appending that to the end of my cron task.

If I jump into Status -> Interfaces and click the renew button to the right of Status DHCP down it brings the interface up, gets an IP and LAN clients can access the internet. only in pfsense the interface stays down. When the stick is reinserted the LED on the stick blinks as it's booting up and once my cron job executes the NDISUP command the LED goes solid blue indicating it's connected to the internet which is great, all working as expected. When the stick is removed the interface will go down as expected. This is the point where I have run into a problem. The idea behind this is if the stick is unplugged and reinserted it'll bring the stick back online within one minute. The same command string is also setup as a cron job that executes every minute.Executing this command as a regular shellcmd sees it happen after pfsense has brought the interface up and as such pfsense hangs until the DHCP request times out for that interface on boot. By executing it as an earlyshellcmd, the connection is up and live by the time pfsense goes to bring the interface up and as such it is able to grab a DHCP lease immediately.

This sends the NDISUP string to the modem and instructs it to connect to the internet. The following needs to be setup in shellcmd as an earlyshellcmd. The USB Ethernet interface the stick presents to pfsense (ue0) needs to be configured as a WAN gateway with connection type DHCP The E3372 must be flashed with stick mode firmware v21.xx

For those who might be interested, this is how I achieved a successful ndis connection using a Huawei E3372: This resolves the issue I had previously where once the PPP session disconnects the modem's port would become unresponsive. Further to my quest to deliver robust 4G connectivity using a pfsense box have now now veered away from the PPP method I was pursing earlier with my post a few days ago Huawei E3372 will not reconnect PPP after manual disconnect under status->interfaces and have managed to configure and successfully connect with the Huawei E3372 in ndis mode.

Huawei e3372 led status