Nel frattempo, non sapendo che fare...ho provato a configurare la scheda di rete con i valori che ho preso da windoz, quando il modem non è connesso. Li riporto:
Indirizzo IP. . . . . . . . . . . . . : 192.168.1.2
Subnet mask . . . . . . . . . . . . . : 255.255.255.0
Gateway predefinito . . . . . . . . . : 192.168.1.1
Server DHCP . . . . . . . . . . . . . : 192.168.1.1
Server DNS . . . . . . . . . . . . . : 192.168.1.1

E riporto l'ifconfig quando quando non sono connessa:
ifconfig
eth0 Link encap:Ethernet HWaddr 00:02:44:55:EE:17
inet addr:192.168.1.2 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:350 errors:0 dropped:0 overruns:0 frame:0
TX packets:287 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:24679 (24.1 Kb) TX bytes:14880 (14.5 Kb)
Interrupt:11 Base address:0xd400

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:24 errors:0 dropped:0 overruns:0 frame:0
TX packets:24 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1632 (1.5 Kb) TX bytes:1632 (1.5 Kb)


poi mi sono connessa (con adsl-start mi dice che è connesso) e questo è l'ifconfig:

root@slack:~#ifconfig
eth0 Link encap:Ethernet HWaddr 00:02:44:55:EE:17
inet addr:192.168.1.2 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:364 errors:0 dropped:0 overruns:0 frame:0
TX packets:301 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:25544 (24.9 Kb) TX bytes:15430 (15.0 Kb)
Interrupt:11 Base address:0xd400

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:24 errors:0 dropped:0 overruns:0 frame:0
TX packets:24 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1632 (1.5 Kb) TX bytes:1632 (1.5 Kb)

ppp0 Link encap:Point-to-Point Protocol
inet addr:80.182.9.201 P-t-P:192.168.100.1 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1492 Metric:1
RX packets:5 errors:0 dropped:0 overruns:0 frame:0
TX packets:3 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:126 (126.0 b) TX bytes:30 (30.0 b)


se provo a pingare il 192.168.1.1.
mi da quresto risultato

ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_seq=1 ttl=255 time=0.762 ms
64 bytes from 192.168.1.1: icmp_seq=2 ttl=255 time=0.587 ms
64 bytes from 192.168.1.1: icmp_seq=3 ttl=255 time=0.645 ms
64 bytes from 192.168.1.1: icmp_seq=4 ttl=255 time=0.647 ms



boh?!?!