Hi,

I have an Alcatel OneTouch X602D mobile broadband modem and an Ubuntu 14.04.

I can connect with the modem to the GSM network - seemingly.
The modem and the Ubuntu also seeing that the connection successfully established, however - in the most of cases - I couldn't use this connection.
(When I trying to ping an address, like 8.8.8.8, I got the message 'Network is unreachable.')

I realized that when I connected to the network, the routing table - in the most of cases - wrong.

In the most of cases the following routing table created:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
91.104.127.35 * 255.255.255.255 UH 750 0 0 ppp0
link-local * 255.255.0.0 U 1000 0 0 ppp0
In this case the internet connectivity seems like established, but it is unreachable.

However some times its works, and routing table generated with right entries:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default * 0.0.0.0 U 750 0 0 ppp0
netacc-gpn-204- * 255.255.255.255 UH 750 0 0 ppp0
link-local * 255.255.0.0 U 1000 0 0 ppp0
In this case the connection can be used and works perfectly.

How can I make the RIGHT routing table being created permanently, when I want to use my mobile connection?
(I using WiFi and Wired connections also, so I need to change between connections.)