I gave up trying to get my Suse install to use a USB ADSL router and switched to RJ45("normal" NIC connector)instead,then Suse can autoconfigure the connection details with DHCP.I will have a look thru google to see if a USB connection needs any extra commands to use it.
Found this ...
USB modem or ISDN Fritz box
The module acm is needed for establishing a connection by means of a USB modem or another communication device.
This module can be manually loaded by entering in the console as root user: