Grazie per la risposta andy caps
in resolv.conf ho i DNS presi sul sito di tiscali 213.205.32.70 - 213.205.36.70
lo stato del modem mi dà questo
ADSL Line Connected
Line Rates: Receive 4832 kbps Transmit 320 kbps
DSL Modulation:G.DMT, Rate Unlimited / Full Rate
ATM Virtual Channel IDs: VPI: 8 VCI: 35
Physical Layer Stats: Receive
Transmit
Noise Margin 13.05/ 7.94: 193
127.99/127.99: 0
Attenuation 51.41 28.00
Power -38
ATM Link Stats: Receive Transmit
Bytes 4240 6466
Cells 80 122
Management Cells 0 12
CLP=0 Cells 71 11
CLP=1 Cells 9 111
HEC Errors 0
Alignment Errors 0
Unroutable Cells 0
AAL Link Stats: Receive Transmit
Good Bytes 3840 5280
Good Frames 80 90
Discarded Bytes 0
Discarded Frames 0
CRC Errors 0
Invalid Length Errors 0
Timeout Errors 0
ATM Channel Stats: Receive Transmit
Bytes 53 106
Cells 1 2
Mgmt Cells 0 1
CLP=0 Cells 1 0
CLP=1 Cells 0 2
HEC Errors 0
Alignment Errors 0
Unroutable Cells 0
AAL 5 Channel Stats: Receive Transmit
Good Bytes 48 96
Good Frames 1 2
Discarded Bytes 0
Discarded Frames 0
CRC Errors 0
Invalid Length Errors 0
Timeout Errors 0
Driver version - 6.1.2.007-PIM-2.6-1.1 (11062004)
EE PROM Mac Address 00.80.ad.b1.a5.79

questo è route -n :
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 lo