premetto che la rete funziona, ho provato da console a pingare il router oppure google e tutto e ok
mentre apt-get update sembra non utilizzare eth0, ho installato kubuntu 7.10
questi sono ifconfig, route e apt-get update
codice:
root@morpheus:~# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:1B:FC:7C:E1:61
          inet addr:192.168.1.4  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::21b:fcff:fe7c:e161/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:2819 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3261 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:2031400 (1.9 MB)  TX bytes:572808 (559.3 KB)
          Interrupt:16

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

root@morpheus:~# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.1.0     *               255.255.255.0   U     0      0        0 eth0
link-local      *               255.255.0.0     U     1000   0        0 eth0
default         mygateway1.ar7  0.0.0.0         UG    100    0        0 eth0
root@morpheus:~# apt-get update
Err http://archive.canonical.com gutsy Release.gpg
  Impossibile connettersi a archive.canonical.com:80 (1.0.0.0), tempo limite di connessione esaurito
Err http://archive.ubuntu.com gutsy Release.gpg
  Impossibile connettersi a archive.ubuntu.com:80 (1.0.0.0), tempo limite di connessione esaurito
Err http://security.ubuntu.com gutsy-security Release.gpg
  Impossibile connettersi a security.ubuntu.com:80 (1.0.0.0), tempo limite di connessione esaurito
...
ho provato a sostituire sources.list con questo
codice:
deb http://it.archive.ubuntu.com/ubuntu/ gutsy main universe restricted multiverse
deb-src http://it.archive.ubuntu.com/ubuntu/ gutsy main universe restricted multiverse

deb http://security.ubuntu.com/ubuntu gutsy-security main universe restricted multiverse
deb-src http://security.ubuntu.com/ubuntu gutsy-security main universe restricted multiverse

deb http://it.archive.ubuntu.com/ubuntu/ gutsy-updates main universe restricted multiverse
deb-src http://it.archive.ubuntu.com/ubuntu/ gutsy-updates main universe restricted multiverse

deb http://it.archive.ubuntu.com/ubuntu gutsy-backports main restricted universe multiverse
deb-src http://it.archive.ubuntu.com/ubuntu gutsy-backports main restricted universe multiverse
non funziona ugualmente

non capisco dov'e' il problema, forse e' un problema di ipv4 e ipv6???