Going online is being done by running the command
wvdial proximus
where proximus is the name of the configuration in the wvdial file with the GPRS configuration for your provider.
You will get an output looking like.
--> WvDial: Internet dialer version 1.41
--> Initializing modem.
--> Sending: ATZ
ATZ
OK
--> Sending: ATM1L2
ATM1L2
OK
--> Modem initialized.
--> Sending: ATDT *99***1#,
--> Waiting for carrier.
ATDT *99***1#,
CONNECT
--> Carrier detected. Waiting for prompt.
--> Don't know what to do! Starting pppd and hoping for the best.
--> Starting pppd at Sat Feb 2 18:53:48 2002
On your mobile phone you will see "Connection" shortly after the "Connection" on your mobile phone disappears you will notice an new PPP interface showing up. (Probably ppp0) And you should have a new route/ default gw.
In your ifconfig you will see some lines like below.
ppp0 Link encap:Point-to-Point Protocol
inet addr:217.136.251.155 P-t-P:10.64.64.64 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:26 errors:0 dropped:0 overruns:0 frame:0
TX packets:32 errors:0 dropped:0 overruns:0 carrier:0
collisions:0
RX bytes:1488 (1.4 Kb) TX bytes:1445 (1.4 Kb)
Your route will look like ..
Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface
10.64.64.64 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
0.0.0.0 10.64.64.64 0.0.0.0 UG 0 0 0 ppp0
Set up your DNS to match your provider`s configuration. In my configuration (proximus) my /etc/resolv.conf looks like
domain proximus.be
nameserver 195.238.2.21
You might need to set up your browser to use a proxy. In the Proximus situation that is 195.238.2.210 port 8080