Advertisement
Enumerating CDC-ECM Interface
By default, the MiFi U620L device is in End-User Mode. This means that only the RNDIS configuration is
exposed. For the device to get a WWAN IP Address assignment, you must switch the configuration to
CDC-ECM.
To switch the configuration and initiate the DHCP request:
1.
Verify that your device is in End-User Mode by issuing the following command:
# lsusb
If the device is in End-User Mode, the response is:
ID 1410:9020 Novatel Wireless
2.
If the device is in End-User Mode, uninstall the RNDIS driver by issuing the following command:
# sudo rmmod rndis_host
3.
Switch the device to CDC-ECM configuration by issuing the following command:
# sudo usb_modeswitch –v 0x1410 –p 0x9020 –u 2
Once these steps are complete, the CDC-ECM interface is enabled on the device and the device
expects a DHCP Request from the Linux server.
4.
Initiate the DHCP Request to the U620L to get the WWAN IP Addresses assigned to Linux by
issuing the following command:
# sudo dhclient eth1
NOTE:
Replace eth1 with the appropriate Ethernet interface enumeration on your setup.
U620L Linux Integration Guide
6
Advertisement
